Installing AutoCAD Mechanical Desktop 6 on Windows 7, Windows 8 and Windows 10

If you are trying to install your old version of AutoCAD MDT 6 on new versions of Windows you can run into lots of problems. Because there are so many issues, we created an App called the Longbow Converter to automatically smooth over installation and running issues for you.

All you need to do is follow these steps to install your AutoCAD MDT 6 on Windows 10 and make it work…


How to install AutoCAD MDT 6 on Windows

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

I recommend that you follow these steps precisely so to eliminate the risk of something going wrong with the install… 

  1. Obtain your copy of the Longbow Converter here
  2. Insert your MDT 6 CD into your computer
  3. Start the Longbow Converter tool
    1. Select the 2nd tab named “Old AutoCAD Installer Reviver”
    2. Using the “. . .” button, pick your MDT 6 CD
      1. Now click the “Run Old Installer” button
      2. Next, just follow the Converter’s instructions.
    3. Once the MDT 6 setup starts, stop and read the next step
  4. 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:\mdt2002 (not Program Files (x86)\Mechanical Desktop 6 as usually prompted by default)**
  5. Once installed, completely close the setup application
    1. 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
    2. Finally, reboot your PC and run your AutoCAD as normal

Troubleshooting  

Copyright 2019 (c) Longbow Software

Uninstalling all Autodesk Products from your Computer

Here’s a good one for you. We added a new tool in our Longbow Converter App which allows you to uninstall all Autodesk products from your computer in one go…

  1. Obtain your copy of the Longbow Converter here
  2. Start the Converter tool
  3. Click the Tools->Advanced->Uninstall all Autodesk Products menu…

    Uninstall All Autodesk Products

    Uninstall All Autodesk Products

  4. The Converter will now list all of the Autodesk products installed on your computer, you can press F5 to refresh. Select which ones you want to be uninstalled, then click Uninstall/Clean

    Uninstall and Clean

    Uninstall and Clean

  5. Note that you will have to interact with the setups, but the software does a really good job of cleaning everything off.

Copyright 2017 (c) Longbow Software

Opening AutoCAD DWG file gives “Drawing File was created by an incompatible version” message

If you are trying to open a DWG file with AutoCAD and you get the message “Drawing File was created by an incompatible version” it’s because somewhere along the line your AutoCAD DWG files were saved with a newer version of AutoCAD.

All is not lost, you can make them open again in your version of AutoCAD, you just need to download the free DWGTrueView App from Autodesk – http://www.autodesk.com/products/dwg/viewers

Once installed, start DWGTrueview and open the DWG file in question, then save as making sure to select the lowest DWG file version that matches your version of AutoCAD.

Copyright 2017 (c) Longbow Software

Install Autodesk Architectural Desktop 3.3 on Windows 7, Windows 8 and Windows 10

Installing AutoCAD Architectural Desktop 3.3 (AutoCAD 2002) on Windows 7, Windows 8 or Windows 10 32bit or 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.

I recommend that you follow these steps precisely so to eliminate the risk of something going wrong with the install…
  1. Obtain your copy of the Longbow Converter here
  2. Using Windows Explorer, copy your entire ADT 3.3 CD to your hard drive, to a folder path c:\Autodesk\CDs\adt2002 
  3. Start the Longbow Converter tool
    1. Select the 2nd tab named “Old AutoCAD Installer Reviver
    2. Pick the newly copied c:\Autodesk\CDs\adt2002  folder
    3. Now click the “Run Old Installer” button.
    4. Read and understand all the prompts before clicking OK.
      1. Once the setup starts, stop and read the next step…
  4. 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:\adt2002 (not Program Files (x86)\Autodesk Architectural Desktop 3.3 as prompted by default)**
    1. Next, install as normal
    2. Do not reboot is prompted to do so
  5. Once installed, go back to the Converter tool
    1. Select the 3rd tab named “Old AutoCAD Program Reviver
    2. Pick the newly installed c:\adt2002 folder
    3. Click the “Fix Old Program” button.
  6. Now, you can happily run your Autodesk Architectural Desktop 3.3 on Windows 7, Windows 8 and Windows 10.
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 2016 (c) Longbow Software

Installing AutoCAD 2002 Express Tools on Windows 7, Windows 8 and Windows 10

If you are having trouble installing AutoCAD 2002 Express Tools with “This app cannot run on your PC” then read on…

Installing AutoCAD 2002 Express Tools (et1-9.exe) on Windows 7, Windows 8 and Windows 8.1 32bit or 64bit can be very easily defined in these short steps.

A quick word of advice: best to follow the instructions below precisely and to the letter, including folder names and paths, that way you will reduce the risk of having any problems…

  1. Obtain your copy of the Longbow Converter here
  2. Next, make sure you have AutoCAD 2002 already installed – follow these steps Installing AutoCAD 2002 on Windows 7, Windows 8 and Windows 10
  3. Unzip this zip file to c:\Autodesk
  4. Start the Longbow Converter tool, select the 2nd tab, pick the newly created c:\Autodesk\ExpressTools2002 folder, and click Run. Read and understand all the prompts before pressing OK.
  5. Now, I know it’s unheard of these days, but at this point expect to wait at least 45 minutes for your AutoCAD 2002 Express Tools setup.exe program to fully appear. Once the setup starts, stop and read the next step…
  6. 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:\acad2002Et (not Program Files (x86)\AutoCAD Express Tools 2002 as usually prompted)**
    1. Do not reboot if prompted to do so
  7. Now you can happily run your Express Tools inside of AutoCAD 2002, simply start AutoCAD 2002 and to use Express Tools 2002 as normal..

Troubleshooting:

  • If your Express Tools 2002 setup is not starting after 45 minutes, try rebooting, then restart the steps above. If it is still failing, most likely it’s because of another application on your system which is preventing our setup routine from starting (perhaps anti-virus, or similar) – try the same steps as above in Windows Safe Mode
Copyright 2015 (c) Longbow Software

Upgrading your working AutoCAD to a new Microsoft Windows version (like Windows 10)

Here are some useful notes on what to do with your AutoCAD when upgrading your Windows version, including upgrading from Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 to Windows 10…

Windows XP and Windows Vista AutoCAD users upgrading to Windows 10

For those of you who are still running AutoCAD on Windows XP and want to upgrade to Windows 10, you will need to

  1. Get a new Windows 10 PC, preferably one without Intel onBoard graphics.
  2. Once you have a Windows 10 PC, run Windows Update until there are no more updates left to be installed.
  3. Next, install your AutoCAD using the Converter app…
    1. click on the version of AutoCAD you have (it explains all that you need to do) : AutoCAD R14 AutoCAD 2000 AutoCAD 2000i AutoCAD 2002 AutoCAD 2004 AutoCAD 2005 AutoCAD 2006 AutoCAD 2007 AutoCAD 2008 32bit AutoCAD 2009 32bit AutoCAD 2010 32bit AutoCAD 2011 32bit AutoCAD 2012 32bit AutoCAD 2013 32bit AutoCAD 2014 32bit 
    2. NOTE: If you can’t find your version listed, use the “Search” at the top left of this page

Windows 7, Windows 8 and Windows 8.1 AutoCAD users upgrading to Windows 10

If you have an existing working installation of AutoCAD running on Windows 7, Windows 8 or Windows 8.1 and are thinking about upgrading your currently Windows version to Windows 10 – be cautious! You see, with every new version of Windows (and its updates) comes a new set of compatibility issues, registry changes, file system security updates, internet browser updates, etc which if you blindly upgrade will most likely render your working AutoCAD useless.

With that said, with care, it is totally possible to upgrade to the newest version of Windows and bring your old AutoCAD with you (that’s the point of our Longbow Converter solution) – we 100% fully support Windows 10. We specifically tested the Windows 10 64bit Enterprise and Windows 10 32bit Education versions with a combination of around 850 different install combinations.

Here’s what you need to do in order to upgrade to Windows 10:

  1. First uninstall all AutoCAD versions on your system; it’s very important that you do this, if you don’t the Autodesk licensing system may get corrupted when you upgrade to Windows 10 at which point you will have to wipe the computer and start again.
  2. Now Upgrade to Windows 10
  3. Obtain the latest Longbow Converter supporting Windows 10 here
  4. Next, install your AutoCAD using the Converter app…
    1. click on the version of AutoCAD you have (it explains all that you need to do) : AutoCAD R14 AutoCAD 2000 AutoCAD 2000i AutoCAD 2002 AutoCAD 2004 AutoCAD 2005 AutoCAD 2006 AutoCAD 2007 AutoCAD 2008 32bit AutoCAD 2009 32bit AutoCAD 2010 32bit AutoCAD 2011 32bit AutoCAD 2012 32bit AutoCAD 2013 32bit AutoCAD 2014 32bit 
    2. If you can’t find your version listed, use the “Search” at the top left of this page

What happens if you already upgraded to Windows 10 with your existing AutoCAD installation – most likely your AutoCAD will not run, nor will you be able to repair it. The best thing to get your AutoCAD running again is to carry out a Windows Reset.

32bit AutoCAD users of versions 2002 thru 2013 and running or Windows 7 upgrading to Windows 8.1

If you have a working Windows 7 machine and you are thinking to upgrade to Windows 8.1 best just stay where you are. Better to upgrade to Windows 10, aside from being a free upgrade, it seems to be a much better platform too.

With that said, if you must upgrade your working Windows 7 system to Windows 8.1, then it is of course possible using our Longbow Converter tool – you ***must*** first uninstall all AutoCAD products before doing the upgrade. Once Windows 8.1 has been installed, just use the Longbow Converter to re-install your 32bit AutoCAD software as before.

  • What happens if you already upgraded to Windows 8.1 with your existing AutoCAD installation – most likely your AutoCAD will not run, nor will you be able to repair it. The best thing to get your AutoCAD running again is to carry out a Windows Reset.
64bit AutoCAD users of versions 2008 thru 2013 upgrading from Windows 7 to Windows 8.1 

If you have a working Windows 7 machine and you are thinking to upgrade to Windows 8.1 best just stay where you are. Better to upgrade to Windows 10, aside from being a free upgrade, it seems to be a much better platform too.

With that said, if you must upgrade your working Windows 7 system to Windows 8.1, then it is of course possible using our Longbow Converter tool – you ***must*** first uninstall all AutoCAD products before doing the upgrade. Once Windows 8.1 has been installed, install your 64bit AutoCAD products as normal then use the Longbow Converter to fix all 64bit AutoCAD 2008 thru 2013 Windows 8 issues

Clean install of Windows 8.1 – installing AutoCAD 32bit 

If you are doing a clean install of Windows 8.1, once Windows 8.1 has been installed, simply use the Longbow Converter to re-install your 32bit AutoCAD software as required.

Clean install of Windows 8.1 – installing AutoCAD 64bit 

If you are doing a clean install of Windows 8.1, once Windows 8 has been installed, install your 64bit AutoCAD products as normal then use the Longbow Converter to fix all 64bit AutoCAD 2008 thru 2013 Windows 8 issues

  • What happens if you already upgraded to Windows 10 with your existing AutoCAD installation – most likely your AutoCAD will not run, nor will you be able to repair it. The best thing to get your AutoCAD running again is to carry out a Windows Reset.

Copyright 2018 (c) Longbow Software

Install AutoCAD 2002 on Windows 10, Windows 7, Windows 8 and WIndows 8.1

Installing AutoCAD 2002 on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 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. Using Windows Explorer, backup your entire AutoCAD 2002 CD to your hard drive, to a folder path c:\Autodesk\CDs\acad2002 
  3. Start the Longbow Converter tool
    1. select the 2nd tab titled “Old AutoCAD Installer Reviver
    2. Using the ‘…’ button, pick the c:\Autodesk\CDs\acad2002 folder (where you just copied your 2002 CD)
    3. Click the “Run Old Installer” button.
      1. 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, except when you get to the installation folder, **it’s vitally important to make sure you install to c:\acad2002 (not Program Files (x86)\AutoCAD 2002 as usually prompted by default)**
    1. IMPORTANT NOTE: You may find that entering the path C:\acad2002 may not take (a bug in the AutoCAD 2002 installer). In that case, you will need to select the installation folder C:\Program Files (x86)\AutoCAD 2002 in step (5) below
    2. Do not reboot if prompted to do so
  5. Once installed, go back to the Converter tool…
    1. Select the 3rd tab titled “Old AutoCAD Program Reviver
    2. Using the ‘…’ button, pick the newly installed c:\acad2002 folder
    3. click “Fix Old Program“.
  6. Now run your AutoCAD 2002 and completely register as normal. Once registered, exit AutoCAD and continue to the next step…
  7. Next, obtain the AutoCAD 2002 sp1 from here unzip and save to c:\Autodesk\spdo 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
  8. 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 10, Windows 7 and Windows 8.
Troubleshooting:
Copyright 2017 (c) Longbow Software

AutoCAD “There was a problem sending the command to the program”

If you are seeing the message “There was a problem sending the command to the program” when you double click a DWG file from Windows Explorer, then the solution is to follow the instructions listed for your AutoCAD version below:

If you do not see your version of AutoCAD listed, or you are not an AutoCAD user, leave me a comment below and I’ll check it out for you.

Copyright Longbow Software 2015

Installing Land Desktop 3 (LDT 2002) on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing Land Desktop 3 (LDT 2002) on Windows 7, Windows 8 or Windows 8.1 32bit or 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. Using Windows Explorer, copy your entire LDT 3 CD to your hard drive, to a folder path c:\Autodesk\ldt2002 
  3. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\ldt2002 folder, and click Run. Read and understand all the prompts before pressing OK. Once the setup starts, stop and read the next step…
  4. 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)**
  5. Once installed, go back to the Converter tool, select the 3rd tab, pick the newly installed c:\ldt2002 folder and click Fix.
  6. Now you can happily run your LDT 2002 on Windows 10, Windows 7 and Windows 8.

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:

Copyright 2015 (c) Longbow Software

Installing Mechanical Desktop 6 on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing Mechanical Desktop 6 (MDT 2002) on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 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.

Before starting, a quick word of advice: best to follow the instructions below precisely and to the letter, including folder names and paths, that way you will reduce the risk of having any problems…
  1. Obtain your copy of the Longbow Converter here
  2. Copy your Mechanical Desktop 6 CD to your hard drive, to a folder path c:\Autodesk\mdt2002 
  3. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\mdt2002 folder, and click Run. Read and understand all the prompts before pressing OK. Once the setup starts, stop and read the next step…
  4. 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:\mdt2002 (not Program Files (x86)\Mechanical 6**
  5. Once installed, go back to the Converter tool, select the 3rd tab, pick the newly installed c:\mdt2002 folder and click Fix.
  6. Now you can happily run your Mechanical Desktop 6.
Troubleshooting:
Copyright 2015 (c) Longbow Software

Installing AutoCAD LT 2002 on Windows 10, Windows 7, Windows 8 and Windows 8.1

If you are a seasoned AutoCAD LT 2002 user, no doubt you will at some point have run into the famous GEDIT 3 error and been very frustrated with it. That error occurs because of certain video card drivers and/or certain types of anti-virus software setups.

On Windows 10, Windows 7 and Windows 8, the GEDIT 3 error is even more prominent because of all the new security features that are inside of Windows 7 and 8. The good news is that it’s totally possible to eradicate the GEDIT 3 error by follow the instructions below:
 

How to install AutoCAD LT 2002 

  1. Obtain your purchased copy of the Longbow Converter here
  2. 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…
  3. 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:\acadlt2002 (not Program Files (x86)\AutoCAD LT 2002 as usually prompted by default)**
    1. IMPORTANT NOTE: For AutoCAD 2002 you may find that entering the path C:\acadlt2002 may not take (a bug in the AutoCAD 2002 installer). In that case, you will need to select the installation folder C:\Program Files (x86)\AutoCAD LT 2002 in step (5) below
    2. Do not reboot if prompted to do so

      You must change the default AutoCAD LT 2002 Install path
  4. Once installed
    1. 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.
  5. Now run your AutoCAD LT 2002 and completely register as normal. Once registered, exit AutoCAD and continue to the next step.
  6. Next, obtain the AutoCAD LT 2002 sp1 from here unzip and save to c:\Autodesk\spdo not install yet
  7. Next, obtain the AutoCAD LT 2002 sp2 from here (or AutoCAD LT 2002 sp2 locked version from here) and save to c:\Autodesk\sp do not install yet
  8. Go back into the Converter
    1. select the 3rd tab named “Old AutoCAD Program Reviver”
    2. Using the “. . .” button, select the c:\Autodesk\sp folder
    3. click “Fix Old Program“.
  9. Now Install the LT 2002 sp1 by running c:\Autodesk\sp\acad2002LTsp1.exe
    1. IMPORTANT NOTE: If you get a 114 error, contact Longbow Software Support to get them to fix it for you.
  10. Next, install the LT 2002 sp2 by running either the unlocked c:\Autodesk\sp\acltk044-k047unl.exe or the locked c:\Autodesk\sp\acltk044-k047swl.exe
    1. IMPORTANT NOTE: If you get a 114 error, contact Longbow Software Support to get them to fix it for you.
  11. Finally, reboot your PC and run AutoCAD as normal.

Troubleshooting

  • If you cannot install your AutoCAD LT 2002 Service Packs because of an error “114: Autocad LT 2002 update was not applied” – rather than try and solve this issue, the easiest solution is:
    1. To go back to your old Windows XP machine and make sure that all of the sp’s are installed on your old Windows XP machine’s installation of AutoCAD LT 2002
    2. Next, simply copy all of the AutoCAD LT 2002 program files and folders from your old Windows XP machine to a USB drive – copy the “contents” of C:\Program Files\AutoCAD LT 2002
    3. Now transfer the USB to your new machine and copy the files that were on your old Windows XP machine’s C:\Program Files\AutoCAD LT 2002 folder into your newly installed c:\acadlt2002 folder – you should see a question if you should overwrite all files, say YES
  • 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

AutoCAD File->Save or File->Open Crash…

If are experiencing crashing problems using the File->Open or File->Save dialog inside of AutoCAD (or any other Autodesk product), there are a few items that can cause this:

  1. New HP Machine If you have recently purchased a new HP computer or you have an HP computer for which you have recently carried out an HP update on Windows 10, Windows 7, Windows 8 or Windows 8.1…Check if you have any of these applications installed:
    • HP Trust Center
    • HP Client Security Manager

      If so, uninstall them and reboot. We recommend you find an alternative as they cause this issue.

  2. For AutoCAD versions >= 2008, you can try disabling the InfoCenter toolbar at the top right of AutoCAD.
    1. If you know LISP, this code will work for all versions of AutoCAD 2008 or higher
      1. add this code to the end of your acad.lsp (vl-registry-write (strcat “HKEY_LOCAL_MACHINE\\” (vlax-product-key)”\\Applications\\InfoCenterAcConn”) “LOADCTRLS” 0)
    2. If you do not know LISP
      1. Start Regedit.exe
      2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\AutoCAD\<Release.Number>\ACAD-<VerticalCode>:<LanguageCode>\Applications\InfoCenterAcConn 
      3. Set the LoadCtrls value to 0
      4. To turn it back on, simply set LoadCtrls value to 76
  3. Remove all USB devices – older versions of AutoCAD don’t understand what a Samsung Phone is, and this can cause crashes.
  4. If you have been opening DWG files from your USB drive, try re-connecting the drive…
  5. The latest Windows Operating systems (Windows 10, Windows 7, Windows 8 and Windows 8.1) correctly use strict permission settings for your personal files (Documents folder etc). The problem is that your older version of AutoCAD does not understand these new permission settings, and this can cause AutoCAD to crash. As a quick test, copy the DWG files that always crash when you save to a USB drive, then create a new folder called c:\MyDwgs, now copy the files from your USB to the c:\MyDwgs folder. Finally, try AutoCAD with the DWG files in c:\MyDwgs – is AutoCAD working now? If so, you can either leave your DWG files in that folder, or you’ll need to relax the permissions on your DWG folder to allow access to AutoCAD.
  6. MSN Plugin – if you see MSN as an entry in your Windows Explorer, uninstall MSN – AutoCAD doesn’t like this.
  7. For versions of AutoCAD >= 2000i here’s a quick fix to bypass the problem (although hard to remember each time) – on starting AutoCAD, type “Options” at the command line, select the ‘Files’ tab, click ‘Browse’, then simply click cancel. Now cancel out of the Options dialog altogether. Try your File->Open… Does it work? If so, you should now be good until the next time you start AutoCAD.
  8. If you have a non-HP machine that is giving you this issue or (2) didn’t work for you, please record below in the comments section:
    1. What computer make you are running
    2. What specific Windows version you are running
    3. What exact version of AutoCAD you are running (e.g. AutoCAD Architecture 2008 32bit)
    4. What AutoCAD service packs (if any) you have applied
    5. What anti-virus software you are running. We’ll see if we can solve this for you…
  9. Check out this page Interactions with the AutoCAD Ribbon crashes AutoCAD on Windows 10
  10. If all this fails, you can of course set FILEDIA = 0 at the command line to turn off the File Dialog User Interface
Copyright 2017 (c) Longbow Software

AutoCAD 32bit/64bit side-by-side installation compatibility chart

This blog has been written to help advise those who require 32bit versions of AutoCAD to reside on the same computer system as 64bit versions of AutoCAD.

Before we start, when installing 32bit AutoCAD on 64bit Windows, you should take care not to mix the same version/series of AutoCAD 32bit with the same version/series of the corresponding 64bit version of AutoCAD, on the same computer. The reason is that they were not designed to run in a side-by-side configuration and therefore may conflict. The same rule can generally be made for all Autodesk products.

NOTES:

  • When installing 32bit AutoCAD, we advise that you uninstall all previous versions of 64bit AutoCAD before installing your 32bit version of AutoCAD.
  • If you are installing multiple versions of AutoCAD, you should always install in chronological order, in other words, oldest to newest.
    • e.g AutoCAD 2004, Architecture 2004, Map 2005, AutoCAD 2007, Civil3d 2015
    • Failure to follow this simple rule can render you with missing entry point errors, un-explained crashing, un-installable Autodesk software and more.
  • For best results, we recommend that you install only 32bit versions of AutoCAD on your computer system, however, mixing is possible with care – refer to the chart below if you must have the 64bit version installed on the same computer.

This chart shows which 32bit AutoCAD versions can be installed on the same system as 64bit AutoCAD versions…

  • Green means Should be OK
  • Red/Dark Red means Problems will occur, you should not do this

AutoCAD 32bit 64bit side by side configurations

Shows which versions of 32bit AutoCAD can be installed side by side to 64bit versions of AutoCAD

Copyright 2015 (c) Longbow Software