Tag Archives: 32bit

Install AutoCAD ADT 3.3/Architecture 3.3 (2002) on Windows 11

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Follow these instructions to solve issues around installing/running your legacy AutoCAD ADT 3.3 (2002) on Windows 11

Ransomware Protection Windows 11 and AutoCAD

Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD ADT 3.3

A quick word of advice: please follow the instructions below precisely as documented including using the same folder names and paths. This will significantly reduce the risk of having any problems…
  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Start the Longbow Converter tool
    1. Insert your AutoCAD ADT 3.3 CD into your CDRom drive
    2. Select the 2nd tab named “Old AutoCAD Installer Reviver“
    3. Using the “…” button, pick your AutoCAD CD
    4. Click “Run Old Installer”
      1. Read and follow all the prompts
      2. Once the AutoCAD setup starts, stop and read the next step…
  5. In the AutoCAD setup program, navigate through each setup dialog as normal, with these exceptions…
    1. When you arrive at the installation folder path setup dialog…
      1. **it’s vitally important to make sure you install to c:\acadadt2002 (not Program Files (x86)\AutoCAD  ADT 3.3 which is normally default)**
      2. Once setup completes…
        1. Do not reboot if asked to do so
        2. Make sure to fully close the setup program when the installation is complete.
  6. Back in the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab, it should say SUCCESS!
  7. Finally, reboot your PC and run your AutoCAD and once registered, exit AutoCAD and continue to the next step.
  8. Next, obtain the AutoCAD ADT 3.3 sp2 from here unzip and save to c:\Autodesk\sp – do not install yet
    1. Go back into the Converter
    2. Select the 3rd tab again
    3. titled “Old AutoCAD Program Reviver“
    4. Using the ‘…’ button, select the c:\Autodesk\sp folder
    5. click “Fix Old Program“
    6. Finally, install the AutoCAD ADT 3.3 sp2 by running the c:\Autodesk\sp\adt33unlsp2enu.exe 
  9. Now, you can happily run your AutoCAD ADT 3.3 on Windows 11

Troubleshooting

  • If your AutoCAD ADT 3.3 setup stuck at very end, check out this blog
  • If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD 
Copyright 2025 (c) Longbow Software

Installing 32bit AutoCAD 2013 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2013 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2013”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2013. It cannot be installed on 64-bit Windows”
  • “FATAL ERROR: (0x7ff87b2f0005) c:\Program Files\Autodesk\AutoCAD 2013\acsceneoe.dbx“

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2013 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2013

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS!!!“
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2025 (c) Longbow Software

Installing 32bit AutoCAD LT 2008 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD LT 2008 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2008”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2008. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2008 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

How to install AutoCAD LT 2008

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, select your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Fully close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS!!“
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2025 (c) Longbow Software

Installing 32bit AutoCAD LT 2013 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2013 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2013”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2013. It cannot be installed on 64-bit Windows”
  • “FATAL ERROR: (0x7ff87b2f0005) c:\program files\autodesk\autocad lt 2013\acsceneoe.dbx“

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2013 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD LT 2013

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD 2011 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2011 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2011”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2011. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2011 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

How to install AutoCAD 2011

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, select your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD LT 2011 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2011 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2011”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2011. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2011 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

How to install AutoCAD LT 2011

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, select your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD Architecture 2012 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2012 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD Architecture® 2012”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD Architecture® 2012. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD Architecture 2012 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD Architecture 2012

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD 2015 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2015 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2015”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2015. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD 2015\acismobj20.dbx

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2015 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2015

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD 2014 on Windows 11

Posted on by

These instructions solve issues around installing/running your old AutoCAD 2014 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2014”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2014. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD LT 2014\acismobj20.dbx

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2014 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2014

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD 2016 on Windows 11

Posted on by

These instructions solve issues around installing/running your 32bit AutoCAD 2016 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2016”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2016. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD 2016\acismobj20.dbx

You can solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2016 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders – here’s how. 

How to install AutoCAD 2016

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Installing Autodesk Land Desktop 2002 (LDT 2002) on Windows 11

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Follow these instructions to solve issues around installing/running your legacy AutoCAD LDT 2002 on Windows 11. It requires the purchase of our Longbow Converter App which provides the framework to allow your old AutoCAD to install and run natively on Windows 11.

NOTE: We currently only support US unlocked versions of 2002 on 64bit OS. European or locked US support 2002 is limited only to 32bit Windows 11.

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install Autodesk LDT 2002

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. This image has an empty alt attribute; its file name is ProblemSolved-1.pngStart the Longbow Converter tool
    1. Select the 2nd tab named “Old AutoCAD Installer Reviver”
    2. Using the “. . .” button, pick your LDT 2002 CD ROM
      1. Now click the “Run Old Installer” button
      2. Next, just follow the Converter’s instructions.
    3. Once the AutoCAD setup starts, stop and read the next step
  5. In the setup program, navigate through each setup dialog as normal, except when you get to the installation folder **it’s vitally important to make sure you install to c:\ldt2002 (not Program Files (x86)\Autodesk Land Desktop 3 as usually prompted by default)**
    1. Now carry on with the install as usual
    2. Do not reboot if asked to do so
  6. Once installed…
    1. Be sure to completely close the setup application
    2. Now go back to the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab, it should say “SUCCESS!!”
    3. Finally, reboot your PC and run your AutoCAD as normal
  7. Now you can happily run your LDT 2002!

Installing LDT 3 Service Packs

You must first install sp1, followed by sp2…

LDT 3 sp1 – software lock/unlocked with html documentation

LDT 3 sp2 – software lock/unlocked with html documentation 

  1. Unzip the sp1 into a folder called c:\Autodesk\LDT3 sp1
  2. Next, start the Converter, select the 3rd tab “Old AutoCAD Program Reviver” select the c:\Autodesk\LDT3 sp1 folder, then click Fix.
    1. If asked if this is a service pack by the Converter tool, say yes.
  3. Now run the sp1 as you need from Windows Explorer.
  4. Repeat for sp2

Installing Civil Design 3

Using the Longbow Converter solution, you can also install the Civil Design add-on to LDT 3.

  1. Using Windows Explorer, copy your entire Civil Design 3 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 – Civil Design 3 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 – Civil Design 3 folder, and click Run. Read and understand all the prompts before pressing OK. Once the setup starts, stop and read the next step…
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Civil Design 3 is up and running with LDT.

Installing Survey 3

Using the Longbow Converter solution, you can also install the Survey add-on to LDT 3.

  1. Using Windows Explorer, copy your entire Survey 3 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 – Survey 3 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 – Survey 3 folder, and click Run. Read and understand all the prompts before pressing OK. Once the setup starts, stop and read the next step…
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Survey 3 is up and running with LDT.

Installing Raster Design 3

Using the Longbow Converter solution, you can also install the Raster Design add-on to LDT 3.

  1. Using Windows Explorer, copy your entire Survey 3 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 – Raster Design 3 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 – Raster Design 3 folder, and click Run. Read and understand all the prompts before pressing OK. Once the setup starts, stop and read the next step…
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Raster Design 3 is up and running with LDT.

Troubleshooting

– If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD

Copyright 2024 (c) Longbow Software

Installing 32bit AutoCAD LT 2014 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2014 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2014”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2014. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD LT 2014\acismobj20.dbx

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2014 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD LT 2014

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2024 (c) Longbow Software

Install AutoCAD 2002 on Windows 11

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Follow these instructions to solve issues around installing/running your legacy AutoCAD 2002 on Windows 11

Ransomware Protection Windows 11 and AutoCAD

Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2002

A quick word of advice: please follow the instructions below precisely as documented including using the same folder names and paths. This will significantly reduce the risk of having any problems…
  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Start the Longbow Converter tool
    1. Insert your AutoCAD 2002 CD into your CDRom drive
    2. Select the 2nd tab named “Old AutoCAD Installer Reviver“
    3. Using the “…” button, pick your AutoCAD CD
    4. Click “Run Old Installer”
      1. Read and follow all the prompts
      2. Once the AutoCAD setup starts, stop and read the next step…
  5. In the AutoCAD setup program, navigate through each setup dialog as normal, with these exceptions…
    1. When you arrive at the installation folder path setup dialog…
      1. **it’s vitally important to make sure you install to c:\acad2002 (not Program Files (x86)\AutoCAD  2002 which is normally default)**
      2. Once setup completes…
        1. Do not reboot if asked to do so
        2. Make sure to fully close the setup program when the installation is complete.
  6. Back in the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab, it should say SUCCESS!
  7. Finally, reboot your PC and run your AutoCAD and once registered, exit AutoCAD and continue to the next step.
  8. Next, obtain the AutoCAD 2002 sp1 from here unzip and save to c:\Autodesk\sp – do not install yet
    1. Go back into the Converter
    2. Select the 3rd tab again
    3. titled “Old AutoCAD Program Reviver“
    4. Using the ‘…’ button, select the c:\Autodesk\sp folder
    5. click “Fix Old Program“
    6. Finally, install the AutoCAD 2002 sp1 by running the c:\Autodesk\sp\acad2002sp1.exe 
  9. Now, you can happily run your AutoCAD 2002 on Windows 11

Troubleshooting

  • If your AutoCAD 2002 setup stuck at very end, check out this blog
  • If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD 
Copyright 2023 (c) Longbow Software

Installing Autodesk Land Desktop 2004 on Windows 11

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Follow these instructions to solve issues around installing/running your legacy AutoCAD LDT 2004 on Windows 11. It requires the purchase of our Longbow Converter App which provides the framework to allow your old AutoCAD to install and run natively on Windows 11.

NOTE: We currently only support US unlocked versions of 2004 on 64bit OS. European or locked US support 2004 is limited only to 32bit Windows 11.

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install Autodesk LDT 2004

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Start the Longbow Converter tool
    1. Insert your AutoCAD CD into your CDRom drive
    2. Select the 2nd tab named “Old AutoCAD Installer Reviver“
    3. Using the “…” button, path the to your AutoCAD CD
    4. Click “Run Old Installer”
      1. Read and follow all the prompts
      2. Once the AutoCAD setup starts, stop and read the next step…
  5. In the AutoCAD setup program, navigate through each setup dialog as normal, with these exceptions…
    1. Some problem NOTES to read before stepping through the setup:
      1. if you cannot move past the first screen in the setup, see Trouble Shooting below
      2. When you click the Install link from your AutoCAD setup you may see a dialog box appear saying – “This program has compatibility issues” – simply check the “Don’t show this message again” and then click the “Run the program without getting help”.
      3. Now onto the setup…
    2. When you arrive at the installation folder path setup dialog…
      1. **it’s vitally important to make sure you install to c:\ldt2004 (not Program Files (x86)\Autodesk Land Desktop 2004)**.
    3. While installing…
      1. If you see an error in install “.NET Runtime Optimization Service has stopped working” – simply ignore by clicking the “Close Program” button
      2. Do not reboot if asked to do so
    4. Once installed
      1. Do not reboot if asked to do so
      2. Make sure to fully close the setup program when the installation is complete.
      3. Back in the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab
  6. Finally, reboot your PC and run your AutoCAD as normal
    1. NOTE: When starting AutoCAD, if you see a warning dialog when you run saying “This program has known compatibility issues”
      1. Click “Don’t show this message again”
      2. then click “Run the Program…”

Installing Civil Design 4

Using the Longbow Converter solution, you can also install the Civil Design add-on to LDT.

  1. Using Windows Explorer, copy your entire Civil Design 4 CD to your hard drive, to a folder path c:\Autodesk\ldt2004 – Civil Design 4 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2004 – Civil Design 4 folder, and click Run.
    1. The Converter will ask if this is a normal application CD, it is not, it’s a plugin CD so click ‘No’
    2. Input Civil 2004 and click OK
    3. Read and understand all the prompts before pressing OK.
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Civil Design is up and running with LDT.

Installing Survey 4

Using the Longbow Converter solution, you can also install the Survey add-on to LDT.

  1. Using Windows Explorer, copy your entire Survey 4 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 – Survey 4 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 – Survey 4 folder, and click Run.
    1. The Converter will ask if this is a normal application CD, it is not, it’s a plugin CD so click ‘No’
    2. Input Survey 2004 and click OK
    3. Read and understand all the prompts before pressing OK.
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Survey is up and running with LDT.

Installing Raster Design 3

Using the Longbow Converter solution, you can also install the Raster Design add-on to LDT.

  1. Using Windows Explorer, copy your entire Raster Design 4 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 – Raster Design 4 
  2. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 – Raster Design 4 folder, and click Run.
    1. The Converter will ask if this is a normal application CD, it is not, it’s a plugin CD so click ‘No’
    2. Input Plugin 2004 and click OK
    3. Read and understand all the prompts before pressing OK.
  3. In the setup program, navigate through each setup dialog as normal
  4. Now your Raster Design is up and running with LDT.

Installing Autodesk LDT 2004 Sp2

The LDT 2004 sp2 is optional, most users don’t need it but in case you do…

  1. Download LDT 2004 sp2 from here 
    1. Copy the file into c:\Autodesk\sp
  2. Start the Converter
    1. Select the 3rd tab named “Old AutoCAD Program Reviver“
    2. Pick the c:\Autodesk\sp folder
    3. Now click the Fix Old Program button.
    4. Install as normal

Troubleshooting

– If you are unable to activate your product, or the activation process crashes immediately on startup:

– If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD

Copyright 2023 (c) Longbow Software

Installing 32bit AutoCAD 2010 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2010 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2010”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2010. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2010 installation so that you can be up and running again… Simply follow the instructions below:

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2010

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Start the Converter App and note the user interface
  5. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  6. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  7. Now run your AutoCAD as normal

Installing AutoCAD 2010 Service Packs

We recommend that you download and install the latest Service Packs from Autodesk which can be found here

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2023 (c) Longbow Software

Installing 32bit AutoCAD LT 2016 on Windows 11

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These instructions solve issues around installing/running your 32bit AutoCAD 2016 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2016”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2016. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD LT 2016\acismobj20.dbx

You can solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2016 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders – here’s how. 

How to install AutoCAD LT 2016

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2023 (c) Longbow Software

Installing 32bit AutoCAD LT 2015 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2015 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2015”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2015. It cannot be installed on 64-bit Windows”
  • FATAL ERROR: (0x7ffb71c40005) C:\Program Files\Autodesk\AutoCAD LT 2015\acismobj20.dbx

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2015 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD LT 2015

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Troubleshooting

  1. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2022 (c) Longbow Software

Installing 32bit AutoCAD LT 2012 on Windows 11

Posted on by

These instructions solve issues around installing/running your old AutoCAD 2012 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD LT® 2012”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD LT® 2012. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD LT 2012 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD LT 2012

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Installing AutoCAD 2012 Service Packs

We recommend that you download and install the latest Service Packs from Autodesk which can be found here

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2022 (c) Longbow Software

Installing 32bit AutoCAD 2012 on Windows 11

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These instructions solve issues around installing/running your old AutoCAD 2012 on 64bit Windows 11. Some common issues are error messages like these

  • “This operating system is not supported by AutoCAD® 2012”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® 2012. It cannot be installed on 64-bit Windows”

You can automatically solve these problems using our Longbow Converter App, it fixes and manages the AutoCAD 2012 installation so that you can be up and running again… Follow these instructions:

Ransomware Protection Windows 11 and AutoCAD

Just before we start note that Windows 11 comes with a Ransomware Protection which includes Controlled Folder Access. Controlled folder access blocks applications from writing to your Documents, Pictures, Videos, Music, Public and Favorites folders. AutoCAD versions all the way to AutoCAD 2021 write to certain user Public folders and are therefore blocked by this feature. This can cause issues with all sorts of things including activating your AutoCAD license and even running AutoCAD. Ransomware Protection is an important feature of Windows 11 but it will affect your AutoCAD unless you allow AutoCAD and its dependent applications access to the controlled folders.

How to install AutoCAD 2012

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

  1. If you don’t yet have a copy of the Longbow Converter App you can purchase it here or click on the download link we sent you via email in order to download the Converter App to your PC.
  2. Before installing the Converter App, make sure the files downloaded from our site are not blocked by Windows SmartScreen… Windows 11 is finicky, click the TLC zip first to make sure it’s fully selected then Right+click the file and select Properties. Be sure to check the Unblock checkbox as shown below and Click OK…
  3. Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
  4. Obtain your purchased copy of the Longbow Converter here
  5. Start the Converter App and note the user interface
  6. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  7. Once the conversion process is complete
    1. click Install/Run Setup to start setup
      1. if you see a dialog stating “An App on your PC needs the following Windows Feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)” be sure to click “Download and install this feature” as this must be installed in order for the setup to run.
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Back in the Converter app and make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should be green stating “SUCCESS”
  8. Now run your AutoCAD as normal

Installing AutoCAD 2012 Service Packs

We recommend that you download and install the latest Service Packs from Autodesk which can be found here

Troubleshooting

  1. If your AutoCAD crashes while interacting with the Ribbon click here
  2. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  3. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
Copyright 2022 (c) Longbow Software

Installing InstaForm Invoices & Estimates Pro 2.0 on Windows 10

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You may be running into various errors when you install your InstaForm on Windows 10, example…

Application Terminated: Error: Null object reference at line ….

It is possible to install Nova’s InstaForm Invoices & Estimates Pro 2.0 on Windows 10 and make it work just fine, just follow these instructions…

How to install Invoices & Estimates Pro 2.0

  1. You will need to obtain the Longbow Reviver App from here
  2. Using Windows Explorer, copy your entire InstaForm Invoices & Estimates Pro 2.0 CD to your hard drive, copy to a folder path c:\CDs\InstaForm
  3. Start the Longbow Reviver App…
    1. Select the 1st tab named “Old Installer Reviver” and using the ‘…’ button pick the C:\CDs\InstaForm\NXW folder
    2. Next, click the ‘Fix and Run Old Installer’ button
    3. Read and understand all the prompts that appear, then continue by clicking OK.
  4. Install as normal, except:
    1. Be sure to install to precisely to this folder – c:\InstaForm\Invoices and Estimates Pro – not the folder prompted in setup which installs to Program Files…
    2. Close setup – Do not reboot if prompted to do so
You must not install to Program Files
  1. Now InstaForm Invoices & Estimates Pro 2.0 is installed, but we need to fix the program files…
    1. Go back to the Longbow Reviver app…
    2. Select the 2nd tab “Old Program Reviver” and using the ‘…’ button pick the newly installed  folder c:\InstaForm\Invoices and Estimates Pro
    3. Set the “Run As” dropdown to Windows XP sp2
    4. Next, click ‘Fix Old Program’ then click ‘YES’ if the Reviver tool asks if you want to re-register…
  2. Now you can happily run your InstaForm Invoices & Estimates Pro 2.0 on Windows 10!

Copyright 2020 (c) Longbow Software

Installing AutoCAD Architecture 2011 32bit on Windows 7, Windows 8 and Windows 10

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NOTE: This blog post specifically solves issues related to these error messages on installation of AutoCAD ADT 2011…

  • “This operating system is not supported by AutoCAD® Architecture® 2011”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD® Architecture® 2011. It cannot be installed on 64-bit Windows”

How to install AutoCAD ADT 2011

  1. Obtain your purchased copy of the Longbow Converter here
  2. Start In the Converter App and note the user interface
  3. Select the 1st tab named “AutoCAD 32bit Installer Converter“
    1. Using the “. . .” button, selection your AutoCAD installation CD
    2. Next, click the “Convert“ button and follow instructions
  4. Once the conversion process is complete
    1. click Install/Run Setup to start setup
    2. Simply install as normal, remembering to…
      1. Close the setup program when the installation is complete.
      2. Now back in the Converter app and make sure it’s completed the final stage of processing using the “Old AutoCAD Program Reviver” tab
  5. Now run your AutoCAD as normal

Installing ADT 2011 Service Packs

We recommend that you download and install the latest Service Packs from Autodesk which can be found here. You must install Update 1, then Update 2

Troubleshooting

– If your AutoCAD crashes while interacting with the Ribbon click here

– If you are unable to activate your product, or the activation process crashes:

– If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD

Copyright 2019 (c) Longbow Software

Installing QuickCAD V4 on Windows 7, Windows 8 and Windows 10

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Installing Autodesk QuickCAD V4 on WIndows 7, Windows 8 and Windows 10 (both 32bit and 64bit) can be very easily defined in these short steps…

  1. First, you need to purchase a copy of the Longbow Reviver tool here
  2. Using Windows Explorer, backup your entire QuickCAD V4 installation CD to your hard drive, to a folder path c:\InstallCDs\QuickCAD V4
  3. Start the Longbow Reviver tool
    1. select the 1st tab “Old Installer Reviver“
    2. then using the ‘…’ button pick the  c:\InstallCDs\QuickCAD V4 folder
    3. Now click the ‘Fix and Run Old Installer’ button
    4. Read and understand all the prompts that appear, then continue by clicking OK.
      1. The tool will now start initializing the setup interface, and may take up to 45 minutes to start. Please be patient…
    5. Once the QuickCAD V4  setup appears, install as normal *except* when prompted for the installation path, set it to c:\QuickCAD e.g.

      Setting the QuickCAD installation path to c:\QuickCAD

      Setting the QuickCAD installation path to c:\QuickCAD


    6. Once the setup is complete
      1. uncheck ‘Run QuickCAD’
      2. Do not reboot if prompted to do so
  4. Now QuickCAD V4 is installed
    1. Make sure the QuickCAD V4 setup is completely closed, then in the Longbow Reviver tool…
    2. Select the 2nd tab “Old Program Reviver“
    3. Using the ‘…’ button, pick the newly installed C:\QuickCAD folder
    4. next, click ‘Fix Old Program’
    5. Say ‘No’ if the Reviver tool asks if you want to re-register…
  5. Now you can happily run your QuickCAD V4 on Windows 7, Windows 8 or Windows 10!

Copyright 2018 (c) Longbow Software

Installing 32bit AutoCAD Mechanical 2010 on Windows 7, Windows 8 and Windows 10 64bit

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NOTE: This blog post specifically solves issues related to these error messages on installation…

  • “This operating system is not supported by AutoCAD Mechanical® 2010”
  • “You cannot install this product on the current operating system”
  • “You are attempting to use a 32-bit installer on a 64-bit operating system”
  • “This is a 32-bit AutoCAD Mechanical® 2010. It cannot be installed on 64-bit Windows”

Installing AutoCAD Mechanical 2010 (MDT 2010) 32bit on Windows 7, Windows 8, Windows 8.1 or Windows 10 64bit can be very easily defined in these short steps…

NOTE: These steps do not bypass normal Autodesk licensing/authorization, you should expect to use your own serial numbers in the normal way.

  1. Obtain your copy of the Longbow Converter here
  2. If you have CDs (if not check (3) below):
    1. Insert your AutoCAD MDT 2010 CD into your CDRom drive, cancel setup if it starts
    2. Next, start the Converter App
    3. Select the 1st tab in the Converter tool named “32bit AutoCAD Installer Converter“
    4. Using the “…” button pick the path to your AutoCAD MDT 2013 CD
    5. Now click the “Convert” button and follow the instructions.
    6. (Skip to step 4)
  3. If you have a single self extracting exe downloaded from Autodesk called something like AutoCAD_Mech_2010_English_Win_32bit.exe
    1. Simply run the exe, it will ask to unzip to a folder inside of c:\Autodesk, make a note of the folder for later use (we’ll refer to it from here as c:\Autodesk\MDT2010), now click OK.
    2. Wait until all of the files have extracted, when they do, the AutoCAD MDT 2013 setup will automatically launch – simply close it and move to the next step.
    3. Now, start the Longbow Converter tool
    4. select the 1st tab titled “AutoCAD 32bit Installer Converter“
    5. pick the c:\Autodesk\MDT2010 folder
    6. and click the “Convert…” button.
  4. Once the conversion process is complete, click the “Install/Run Setup” button to start setup.
    1. Install as normal!
  5. Windows 8, Windows 8.1 and Windows 10 users: Once the installation process is complete, go back to the Converter
    1. select the 3rd tab named “Old AutoCAD Program Reviver“
    2. pick the newly installed C:\Program Files (x86)\Autodesk\AutoCAD Mechanical 2010 folder
    3. then click “Fix Old Program”
  6. Now you can happily run your AutoCAD MDT 2010 32bit on Windows 7, Windows 8 and Windows 10!

Installing AutoCAD MDT 2010 Service Pack 2

  1. Here’s sp2 – AutoCAD Mechanical 2010 sp2 – install as normal

Troubleshooting:

  1. If your installed AutoCAD is hanging on startup then read this post first AutoCAD Freezes on startup (AutoCAD visible but the menus don’t appear)
  2. if your AutoCAD hangs on startup (stuck at the “Checking License…” message, try installing the 32bit version of AutoCAD 2010 on 64bit Windows – we’ve actually found the 32bit AutoCAD 2010 running on 64bit Windows is much more stable and actually faster than the 64bit version of AutoCAD 2010.
  3. If your AutoCAD crashes while interacting with the Ribbon click here
  4. If you are unable to activate your product, or the activation process crashes:
    1. Try uninstalling the July 2014 Microsoft security update
    2. Try downgrading your Internet Explorer (IE) from version 11 to version 10 by following the instructions detailed here
  5. If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD
  6. If your Windows hangs on startup after installing please refer to this help blog
Copyright 2017 (c) Longbow Software

Installing Autodesk Land Desktop 2006 on Windows 7, Windows 8 and Windows 10

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Installing AutoCAD LDT 2006 on Windows 7, Windows 8, Windows 8.1 or Windows 10 32bit or 64bit can be very easily defined in these short steps…

IMPORTANT NOTE: Autodesk no longer supply License Activation codes for this version of AutoCAD. The best way is to transfer your existing license to the new PC but there are other options, we document them here

  1. Obtain your copy of the Longbow Converter here
  2. Start In the Converter tool
    1. Next, click the File menu’s “Backup CD to Disk”
    2. Follow the prompts
  3. Once the backup is completed
    1. click the Run Old Installer button… Read and understand all the prompts before pressing OK.
    2. Once the setup starts, stop and read the next step…
  4. In the setup program, navigate through each setup dialog as normal, with these exceptions… (if you cannot move past the first screen in the setup, see Trouble Shooting below)…
    1. When you click the Install link from your setup you may see a dialog box appear saying – “This program has compatibility issues” – simply check the “Don’t show this message again” and then click the “Run the program without getting help”.
    2. When you arrive at the installation folder path setup dialog, **it’s vitally important to make sure you install to c:\ldt2006 (not C:\Program Files (x86)\Autodesk Land Desktop 2006 that is defaulted)**.
    3. If asked to reboot after the install, say NO
  5. Once installed, do not reboot, make sure you fully close the AutoCAD setup program (because the Converter is waiting for the setup program to fully close) then go back to the Converter tool, select the 3rd tab, pick the newly installed c:\ldt2006 folder and click the Fix Old Program button.
  6. Now you can run your Autodesk LDT 2006 on Windows 7, Windows 8 and Windows 10, both 32bit and 64bit.
    1. NOTE: When starting AutoCAD, if you see a warning dialog when you run saying “This program has known compatibility issues“, simply click “Don’t show this message again” and then click “Run the Program…“

Troubleshooting:

– If you are unable to activate your product, or the activation process crashes immediately on startup:

– If you have crashing problems using the File->Open or File->Save dialogs inside of AutoCAD please read this blog entry on the File->Open or File->Save Crash in AutoCAD

Copyright 2017 (c) Longbow Software

Run Adobe Acrobat X plugin in 32bit AutoCAD on Windows 7, Windows 8 and Windows 10 64bit

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The Adobe Acrobat X plugin for AutoCAD only runs on 32bit AutoCAD, and 32bit AutoCAD only runs on 32bit Windows. This means that you will be stuck if you require the Adobe Acrobat X plugin for AutoCAD and move to newer hardware with 64bit Windows.

The Solution:  

Click on one of the links below to see how to install 32bit AutoCAD on 64bit Windows and then be able to install Adobe Acrobat X plugin.

Copyright 2017 (c) Longbow Software