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Installing AutoCAD LT98 on Windows 11

Posted on March 14, 2023 by simonbooth

AutoCAD LT98 users are very used to the software package and cannot do without it. With the latest hardware and required move to new Windows versions, trying to install your AutoCAD LT98 gives an error like this one…

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98”

…all is not lost, follow these instructions to install your AutoCAD LT98 on 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 AutoCAD LT 98

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…

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.
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…

Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
Once installed, start the Longbow Converter App…
1. Now place your AutoCAD LT98 CD in the CDRom Drive
2. In the Converter App, select the 2nd tab named “Old AutoCAD Installer Reviver“
3. Using the “. . .” button, select your AutoCAD LT98 installation CD
4. Next, click the “Run Old Installer” button and follow the onscreen instructions. If all is well a dialog will appear stating success, simply click OK to start your AutoCAD setup
  1. Now I know it’s unheard of these days, but at this point expect to wait up to 45 minutes for your AutoCAD LT98 setup.exe program to appear, be patient – NOTE: do not continue with the install until reading the next step…
1. Once the setup starts, stop and read the next steps all the way to the end! By the way, if your AutoCAD LT98 setup does not start after 45 minutes, read the Troubleshooting section below.
In the AutoCAD setup program…
1. navigate through each setup dialog as normal, with these exceptions…
  1. Make sure you do a Typical Install (not a Full Install)
  2. When you get to the installation folder input dialog **it’s vitally important to make sure you install to c:\acadlt98 (not Program Files\AutoCADLT98 as usually prompted)**
Now carry on with the install
1. Do not reboot once the install is complete
2. Ignore any errors related to not being able to create the shortcut e.g. “Cannot Create folder ‘AutoCAD LT98’“, you will have to create a shortcut on your computer Desktop to your c:\acadlt98\acad.exe by hand.
3. Again, do not reboot if prompted to do so
Once your AutoCAD LT98 setup has completed the installation…
1. Make sure you fully close the setup program.
2. Once the setup is closed the Converter will automatically fix the c:\acadlt98 program files. You should see “Success!” displayed in the 3rd tab named “Old AutoCAD Program Reviver“
3. Now reboot your PC
You can now run your AutoCAD LT98 as normal, using Windows Explorer, navigate to c:\acadlt98 and double click aclt.exe

Troubleshooting

If your AutoCAD LT98 setup is not starting after 45 minutes…
1. First try turning off UAC, rebooting, then restart the steps above.
2. 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 installing LT98 from Windows Safe Mode
If you are getting either a Bad Mem Pointer error and or a Smartheap handler recursively re-entered error when you start your AutoCAD LT98 then you need to re-run all the steps above, taking care to do each step precisely as it says, most likely you are missing from step 5 or you have not installed to c:\acadlt98 as stated in step (7) above.
When starting AutoCAD, if you receive an ‘acad.exe – System Error’ message: The program can’t start because ac1st15.dll is missing from your computer. Try reinstalling the program to fix this problem. If you carried out step (7) above, then try rebooting your PC
If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft
Issues with Calcomp Digitizer – Calcomp Digitizer not working
If the setup displays an error message InstallError (IUO)
(X) not enough space(IUO) try unplugging any External USB drives
Plotting issues? If you get an error splwow64.exe “The application was unable to start correctly” with error “0xc0000005”
1. Make sure your Anti-virus and/or Windows Firewall is not blocking splwow64.exe
2. If the problem persists
  1. First, note that you need the latest version of the Converter App
  2. Start the Converter App
  3. Select the 3d tab “Old AutoCAD Program Reviver”
  4. Click the Tools Menu->Reduced Power Mode
  5. Using the “…” button, pick your acad.exe folder e.g. c:\acadlt98
  6. Click “Fix Old Program” and follow prompts
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

Installing AutoCAD LT97 on Windows 11

Posted on August 15, 2022 by simonbooth

AutoCAD LT97 users are very used to the software package and cannot do without it. With the latest hardware and required move to new Windows versions, trying to install your AutoCAD LT97 gives an error like this one…

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98” …all is not lost, follow these instructions to install your AutoCAD LT97 on Windows 11…

Ransomware Protection Windows 11 and AutoCAD

How to install AutoCAD LT97

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…

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.
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…

Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
Once installed, start the Longbow Converter App…
1. Now place your AutoCAD LT97 CD in the CDRom Drive
2. In the Converter App, select the 2nd tab named “Old AutoCAD Installer Reviver“
3. Using the “. . .” button, select your AutoCAD LT97 installation CD
4. Next, click the “Run Old Installer” button and follow the onscreen instructions. If all is well a dialog will appear stating success, simply click OK to start your AutoCAD setup
  1. Now I know it’s unheard of these days, but at this point expect to wait up to 45 minutes for your AutoCAD LT97 setup.exe program to appear, be patient – NOTE: do not continue with the install until reading the next step…
5. Once the setup starts, stop and read the next steps all the way to the end! By the way, if your AutoCAD LT97 setup does not start after 45 minutes, read the Troubleshooting section below.
In the AutoCAD setup program…
1. navigate through each setup dialog as normal, with these exceptions…
  1. Make sure you do a Typical Install (not a Full Install)
  2. When you get to the installation folder input dialog **it’s vitally important to make sure you install to c:\acadlt97 (not Program Files\AutoCADLT97 as usually prompted)**

Now carry on with the install
1. Do not reboot once the install is complete
2. Ignore any errors related to not being able to create the shortcut e.g. “Cannot Create folder ‘AutoCAD LT97’, you will have to create a shortcut on your computer Desktop to your c:\acadlt97\aclt.exe by hand.
3. Again, do not reboot if prompted to do so
Once your AutoCAD setup has completed the installation…
1. Make sure you fully close the setup program.
2. Once the setup is closed the Converter will automatically fix the c:\acadlt97 program files. You should see “Success!” displayed in the 3rd tab named “Old AutoCAD Program Reviver“
3. Now reboot your PC
You can now run your AutoCAD LT97, using Windows Explorer, navigate to c:\acadlt97 and double click aclt.exe

Troubleshooting

If your AutoCAD LT97 setup is not starting after 45 minutes…
1. First try turning off UAC, rebooting, then restart the steps above.
2. 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 installing LT97 from Windows Safe Mode
If you are getting an application failure with Unhandled Exception 0x800F0922
- The security software (ESET Nod 32) must uninstalled; suspending it not effective
If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft

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

Installing AutoCAD for Windows 95 (LT95) on Windows 11

Posted on March 14, 2022 by simonbooth

As an existing AutoCAD LT95 user, you most likely cannot do without your beloved AutoCAD. With the latest hardware and required move to new Windows versions, trying to install your AutoCAD LT95 gives an error like this one…

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98”

…all is not lost, follow these instructions to install your LT95 on Windows 11…

Ransomware Protection Windows 11 and AutoCAD

How to install AutoCAD LT95

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…

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.
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…

Double click the zip file to open it and install the TLC application as normal. By the way, TLC stands for The Longbow Converter
Once installed, start the Longbow Converter App…
1. Now place your AutoCAD LT95 CD in the CDRom Drive
2. In the Converter App, select the 2nd tab named “Old AutoCAD Installer Reviver“
3. Using the “. . .” button, select your AutoCAD LT95 installation CD
4. Next, click the “Run Old Installer” button and follow the onscreen instructions. If all is well a dialog will appear stating success, simply click OK to start your AutoCAD setup
  1. Now I know it’s unheard of these days, but at this point expect to wait up to 45 minutes for your AutoCAD LT95 setup.exe program to appear, be patient – NOTE: do not continue with the install until reading the next step…
5. Once the setup starts, stop and read the next steps all the way to the end! By the way, if your AutoCAD LT95 setup does not start after 45 minutes, read the Troubleshooting section below.
In the AutoCAD LT95 setup program…
1. navigate through each setup dialog as normal, with these exceptions…
2. Make sure you do a Typical Install (not a Full Install)
3. When you get to the installation folder input dialog **it’s vitally important to make sure you install to c:\acadLT95 (not Program Files\AutoCAD LT95 as usually prompted)**
Now carry on with the install
1. Do not reboot once the install is complete
2. Ignore any errors related to not being able to create the shortcut e.g. “Cannot Create folder ‘AutoCAD LT95’“, you will have to create a shortcut on your computer Desktop to your c:\acadLT95\acad.exe by hand.
3. Again, do not reboot if prompted to do so
Once your AutoCAD LT95 setup has completed the installation…
1. Make sure you fully close the setup program.
2. Once the setup is closed the Converter will automatically fix the c:\acadLT95 program files. You should see “Success!” displayed in the 3rd tab named “Old AutoCAD Program Reviver“
3. Now reboot your PC
You can now run your AutoCAD LT95, using Windows Explorer, navigate to c:\acadLT95 and double click aclt.exe

Troubleshooting

If your AutoCAD setup is not starting after 45 minutes…
1. First try turning off UAC, rebooting, then restart the steps above.
2. 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 installing LT95 from Windows Safe Mode
If you are getting either a Bad Mem Pointer error and or a Smartheap handler recursively re-entered error when you start your AutoCAD then you need to re-run all the steps above, taking care to do each step precisely as it says, most likely you are missing from step 5 or you have not installed to c:\acadLT95 as stated in step (7) above.
When starting AutoCAD, if you receive an ‘acad.exe – System Error’ message: The program can’t start because ac1st15.dll is missing from your computer. Try reinstalling the program to fix this problem. If you carried out step (7) above, then try rebooting your PC
If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft
Issues with Calcomp Digitizer – Calcomp Digitizer not working
If the setup displays an error message InstallError (IUO)
(X) not enough space(IUO) try unplugging any External USB drives
Plotting issues? If you get an error splwow64.exe “The application was unable to start correctly” with error “0xc0000005”
1. Make sure your Anti-virus and/or Windows Firewall is not blocking splwow64.exe
2. If the problem persists
  1. First, note that you need the latest version of the Converter App
  2. Start the Converter App
  3. Select the 3d tab “Old AutoCAD Program Reviver”
  4. Click the Tools Menu->Reduced Power Mode
  5. Using the “…” button, pick your acad.exe folder e.g. c:\acadLT95
  6. Click “Fix Old Program” and follow prompts
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

Installing AutoCAD 2000 on Windows 7, Windows 8 and Windows 10

Posted on May 1, 2015 by simonbooth

Most current AutoCAD 2000 users are very used to the software package and cannot do without it. With the latest hardware and required move to new Windows versions, trying to install your AutoCAD 2000 gives an error like this one…

Windows 16bit setup error – This app can’t run on your PC

Or maybe this error…

Error while trying to install AutoCAD 2000

…all is not lost, just read on…

How to install AutoCAD 2000

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…

Obtain your copy of the Longbow Converter here
Before starting, we recommend turning off Windows UAC
Now, start the Longbow Converter tool by double clicking the Longbow Converter shortcut on your Desktop… .
1. Insert your AutoCAD 2000 CD
2. Select the 2nd tab titled “Old AutoCAD Installer Reviver” by clicking on it
3. Next, using the ‘…’ button select your AutoCAD 2000 CD
4. Now click the “Run Old Installer” button.
  1. Read, understand and follow all the prompts.
For AutoCAD 2000, the Migration Wizard almost instantly pops up
1. simply click “Install 2000” as normal.
2. Now, I know it’s unheard of these days, but at this pointexpect to wait at least 45 minutes for your AutoCAD 2000 setup.exe program to fully appear – please be patient
3. Once the setup starts, stop and read the next step…
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:\acad2000 (not Program Files (x86)\AutoCAD 2000 as usually prompted)** e.g.
$Setting AutoCAD 2000 custom install directory to c:\acad2000$
Setting AutoCAD 2000 custom install directory to c:\acad2000
1. Once you have set the Destination Folder to c:\acad2000, install as normal
  1. Ignore the error message that the shortcut cannot be created “Cannot create folder AutoCAD 2000“, you will need to create the program shortcut by hand once the installation is finished.
2. Do not reboot if prompted to do so
Once setup has completed…
1. Make sure to fully close the setup program
2. Back in the Converter app, make sure it has completed the final stage of processing using the “Old AutoCAD Program Reviver” tab – it should display “SUCCESS” in green…
Now Reboot your PC
Your AutoCAD 2000 is ready to run as it is right now, simply use Windows Explorer, navigate to c:\acad2000 and double click acad.exe (if you want a shortcut on the Desktop you will have to manually create it).

Installing AutoCAD 2000 Express Tools

If you rely on AutoCAD 2000 Express Tools or you are seeing “Missing Application: RTEXT” Proxy dialog when you are loading on a drawing, here are the instructions for installing Express Tools Volume 9 for AutoCAD 2000

Installing AutoCAD 2000 ObjectDBX Classes Object Enabler

Download AutoCAD 2000 ObjectDBX Classes Object Enabler from here
Unzip to folder path c:\Autodesk
Start the Converter
1. select the 2nd tab named “Old AutoCAD Installer Reviver“
2. Using the “…” button, pick the c:\Autodesk\AutoCAD 2000 – ObjectDBX Classes Object Enabler folder
3. click ‘Run Old Installer‘
4. Install as normal

Installing AutoCAD 2000 AEC Object Enabler 2.11

Download AutoCAD 2000 AEC Object Enabler 2.11 from here
Unzip your newly downloaded sp to folder path c:\Autodesk\AutoCAD2000-AEC211
Start the Converter
1. select the 2nd tab named “Old AutoCAD Installer Reviver“
2. Using the “…” button, pick the c:\Autodesk\AutoCAD2000-AEC211 folder
3. click ‘Run Old Installer‘
4. Wait for the setup to appear, it could take up to 45 minutes, then install as normal

Installing AutoCAD 2000 Architectural Object Enabler 3.02

Download AutoCAD 2000 Architectural Object Enabler 3.02 from here
Unzip and install as normal

Installing AutoCAD 2000 Service Pack 1

Download AutoCAD 2000 sp1 from here
1. Unzip the downloaded zip file to folder path c:\Autodesk\sp
Start the Converter
1. select the 2nd tab named “Old AutoCAD Installer Reviver“
2. pick the c:\Autodesk\sp\AutoCAD 2000 sp1 folder
3. click ‘Run Old Installer‘
4. Wait for the setup to appear, it could take up to 45 minutes, then install as normal

Installing AutoCAD 2000 Service Pack 2

Download AutoCAD 2000 sp2 from here
Unzip the downloaded zip file to folder path c:\Autodesk\sp
Start the Converter
1. select the 2nd tab named “Old AutoCAD Installer Reviver“
2. pick the c:\Autodesk\sp\AutoCAD 2000 sp2 folder
3. click ‘Run Old Installer‘
4. Wait for the setup to appear, it could take up to 45 minutes, then install as normal

Installing AutoCAD 2000 3D Graphics System Update 1

If you use 3D a lot in AutoCAD 2000, you should read on to install the 3DUpdate…

Download AutoCAD 2000 3D Graphics System Update1 from here
Unzip your newly downloaded sp to folder path c:\Autodesk\update
Start the Converter, select the 2nd tab, pick the c:\Autodesk\update folder and click ‘Run’
Wait for the setup to appear, it could take up to 45 minutes, then install as normal.

NOTE: Some users have found that the 3D Graphics System Update runs through the install as normal but doesn’t actually update the modules. If you suspect this is true, contact Longbow Software Support.

Troubleshooting

If your AutoCAD 2000 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 installing AutoCAD 2000 from Windows Safe Mode
If when you start AutoCAD, you see error messages about missing missing aclst15.dll or missing ACUTIL15.dll or missing ACDB15.dll or missing acge15.dll
- In the Converter app Using the 3rd tab, pick your c:\acad2000 folder and click ‘Fix’. Then reboot…
- If this doesn’t fix the problem, contact Longbow Software Support.

Plotting – if you are having plotting issues, either
- Install the AutoCAD 2000 plotupdate patch
- Download Autodesk DWG TrueView 2015 – it’s free and allows the latest plotters and plotting configurations.
If you see Proxy Warning Dialogs when you open a DWG using AutoCAD 2000, you need to install the service packs as described above.
If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft
Issues with Calcomp Digitizer – Calcomp Digitizer not working
If you still see the error “Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98” even after converting
- Copy the AutoCAD 2000 CD fresh to your computer, then start from step (1) again
- If you still get the error, you need the latest version of the Longbow Converter tool
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

Installing AutoCAD for Windows 95 (LT95) on Windows 7, Windows 8 and Windows 10

Posted on June 28, 2014 by simonbooth

AutoCAD for Windows 95 (LT95) users are very used to the software package and cannot do without it. With the latest hardware and required move to new Windows versions, trying to install your AutoCAD LT95 gives an error like this one…

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98”

…all is not lost…

How to install AutoCAD LT95

Obtain your copy of the Longbow Converter here, you will need minimum version 7.16.

Using Windows Explorer
1. copy all of your AutoCAD LT95 disks to your hard drive, to a folder path c:\Autodesk\acadLT95 (Each disk should be in a numbered sub-folder off c:\Autodesk\acadLT95 e.g. c:\Autodesk\acadLT95\1
Once you have copied all the disks, start the Longbow Converter tool
1. select the 2nd tab named “Old AutoCAD Installer Reviver“
2. pick the c:\Autodesk\acadLT95\1 folder (disk 1)
3. Next click “Run Old Installer“.
  1. Read and understand all the prompts before pressing OK.
  2. Now, I know it’s unheard of these days, but at this point expect to wait at least 45 minutes for your AutoCAD LT95 setup.exe program to appear. Once the setup starts, stop and read the next step…
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:\acadLT95 (not the Program Files (x86)\AutoCAD LT as usually prompted)**
1. If prompted, do not reboot once the installation has completed
Once installed
1. go back to the Converter tool
2. select the 3rd tab named “Old AutoCAD Program Reviver“
3. pick the newly installed c:\acadLT95 folder and click “Fix Old Program“.
4. Once the Converter has completed with “Success!”, close the Converter app, reboot your PC!
Now you can happily run your AutoCAD for Windows 95 on Windows 10, Windows 7 and Windows 8 32bit or 64bit. Simply navigate to c:\acadLT95 using Windows Explorer, and double click aclt.exe.

Troubleshooting

If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft
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

Installing AutoCAD LT97 on Windows 7, Windows 8 and Windows 10

Posted on June 26, 2014 by simonbooth

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98”

…all is not lost…

How to install AutoCAD LT97

Obtain your purchased copy of the Longbow Converter here
1. Because Windows is constantly updating you will need the latest version of the Converter App
Start In the Converter App
Insert your AutoCAD LT97 CD into your CDRom drive…
1. Select the 2nd tab titled “Old AutoCAD Installer Reviver“
2. Using the “. . .” button, select your AutoCAD LT97 installation CD
3. Next, click the “Run Old Installer” button and follow the instructions
4. Please be patient as the Converter starts your AutoCAD LT97 Setup…. expect to wait at least 45 minutes for your AutoCAD LT97 setup.exe program to appear.
  1. Once the setup starts, stop and read the next step…
In the setup program…
1. navigate through each setup dialog as normal except when you get to the installation folder input – **it’s vitally important to make sure you install to c:\acadLT97 (not .\AutoCAD LT97 as usually prompted)**
2. Now carry on with the install…
3. Ignore any errors related to not being able to create the shortcut Cannot create folder “AutoCAD LT 97” you will have to create a shortcut on your computer Desktop to your c:\acadLT97\aclt.exe by hand.
4. Do not reboot if prompted to do so
5. Make sure you fully close the setup program.
Once the setup is closed the Converter will automatically fix the c:\acadLT97 program files.
1. You should see “Success!” displayed in the 3rd tab named “Old AutoCAD Program Reviver“
  1. Now, close the Converter App
  2. Reboot your PC
Now you can happily run your AutoCAD LT97, using Windows Explorer, navigate to c:\acadLT97 and double click aclt.exe

Troubleshooting

If you are getting an application failure with Unhandled Exception 0x800F0922
- The security software (ESET Nod 32) must uninstalled; suspending it not effective
If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft

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

Installing AutoCAD LT98 on Windows 7, Windows 8, Windows 10

Posted on June 25, 2014 by simonbooth

“This app can’t run on your PC”

or this one…

“Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98”

…all is not lost…

How to install AutoCAD LT98

Obtain your purchased copy of the Longbow Converter here
Start In the Converter App
Insert your AutoCAD LT98 CD into your CDRom drive…
1. Select the 2nd tab titled “Old AutoCAD Installer Reviver“
2. Using the “. . .” button, select your AutoCAD LT98 installation CD
3. Next, click the “Run Old Installer” button and follow the instructions
4. Please be patient as the Converter starts your AutoCAD LT98 Setup…. expect to wait at least 45 minutes for your AutoCAD LT98 setup.exe program to appear.
  1. Once the setup starts, stop and read the next step…
In the setup program…
1. navigate through each setup dialog as normal except when you get to the installation folder input – **it’s vitally important to make sure you install to c:\acadLT98 (not .\AutoCAD LT98 as usually prompted)**
2. Now carry on with the install…
3. Ignore any errors related to not being able to create the shortcut Cannot create folder “AutoCAD LT 98” you will have to create a shortcut on your computer Desktop to your c:\acadLT98\aclt.exe by hand.
4. Do not reboot if prompted to do so
Once installed, go back to the Converter tool…
1. select the 3rd tab – “Old AutoCAD Program Reviver”
2. Using the “. . .” button, select the newly installed c:\acadLT98 folder
3. Once you have selected the c:\acadLT98 folder simply click the “Fix Old Program” button.
4. Once the Converter has completed with “Success!”, close the Converter app, reboot your PC!
Now you can happily run your AutoCAD LT98! Simply use Windows Explorer, navigate to c:\acadLT98 and double click aclt.exe.

Troubleshooting:

If you are getting a WinHelp() error when pressing F1 to try and access the Help system then simply install the WinHelp (WinHlp32.exe) module from Microsoft
If your wheel mouse zoom is erratic (random zoom in / outs while scrolling), update the Control Panel->Mouse->Wheel->”Roll the wheel one notch to scroll” set to 3 lines or less

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

Longbow Software Blog

by Simon Booth

Tag Archives: Wrong OS

Installing AutoCAD LT98 on Windows 11

Ransomware Protection Windows 11 and AutoCAD

How to install AutoCAD LT 98

Troubleshooting

Installing AutoCAD LT97 on Windows 11

Ransomware Protection Windows 11 and AutoCAD

How to install AutoCAD LT97

Troubleshooting

Installing AutoCAD for Windows 95 (LT95) on Windows 11

Ransomware Protection Windows 11 and AutoCAD

How to install AutoCAD LT95

Troubleshooting

Installing AutoCAD 2000 on Windows 7, Windows 8 and Windows 10

How to install AutoCAD 2000

Installing AutoCAD 2000 Express Tools

Installing AutoCAD 2000 ObjectDBX Classes Object Enabler

Installing AutoCAD 2000 AEC Object Enabler 2.11

Installing AutoCAD 2000 Architectural Object Enabler 3.02

Installing AutoCAD 2000 Service Pack 1

Installing AutoCAD 2000 Service Pack 2

Installing AutoCAD 2000 3D Graphics System Update 1

Troubleshooting

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