Installing old versions of AutoCAD on Windows 7, Windows 8 and Windows 10

Old versions of AutoCAD were not designed to run in newer versions of Windows and you will find that installing them the normal way yields lots of issues or even failure to install at all.

The Longbow Converter app allows old versions of AutoCAD to be installed on new versions of Windows, removing all known compatibility issues automatically for you.

Instructions for installing old versions of AutoCAD on Windows 7, Windows 8 and Windows 10


  • AutoCAD 2008   AutoCAD 2009   AutoCAD 2010   AutoCAD 2011   AutoCAD 2012   AutoCAD 2013
  • AutoCAD 2014   AutoCAD 2015   AutoCAD 2016   AutoCAD 2017
  • 32bit or 64bit
  1. Make sure all previous installed versions of AutoCAD are uninstalled first.
  2. Obtain your copy of the Longbow Converter here
  3. Start the Converter tool
    1. Pick the 1st tab named “AutoCAD 32bit Installer Converter
    2. If your AutoCAD is 64bit
      1. Using your mouse, right click the tab text “AutoCAD 32bit Installer Converter” so that it changes to “AutoCAD 64bit Installer Converter
    3. Next, using the “…” button, select your AutoCAD installation CD and follow the instructions presented by the Converter tool user interface
  4. Once you have completed the AutoCAD installation process…
    1. close the setup program then go back to the Converter app again
    2. This time, select the 3rd tab “Old AutoCAD Program Reviver
      1. Using the “…” button, pick the folder where your AutoCAD was just installed (for 64bit in c:\Program Files and for 32bit in c:\Program Files (x86)
      2. then click “Fix Old Program
  5. Install any service packs for your AutoCAD
  6. Now you can happily run your AutoCAD on Windows 7, Windows 8 and Windows 10


Copyright 2018 (c) Longbow Software

Installing AutoCAD for Windows 95 (LT95) on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing AutoCAD for Windows 95 (LT95) 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, you will need minimum version 7.16.
  2. 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
  3. 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…
  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:\acadLT95 (not the Program Files (x86)\AutoCAD LT as usually prompted)**
    1. If prompted, do not reboot once the installation has completed
  5. 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“.
  6. 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.

Copyright 2017 (c) Longbow Software