Longbow Software
  • Home
  • Our Products
    • Converter
    • Reviver
    • Previewer
  • Downloads
  • Blog
  • Product Help
    • Converter
    • Reviver
    • Previewer
  • Contact Us
  • Sitemap
  • More
    • Home
    • Our Products
      • Converter
      • Reviver
      • Previewer
    • Downloads
    • Blog
    • Product Help
      • Converter
      • Reviver
      • Previewer
    • Contact Us
    • Sitemap
Longbow Software
  • Home
  • Our Products
    • Converter
    • Reviver
    • Previewer
  • Downloads
  • Blog
  • Product Help
    • Converter
    • Reviver
    • Previewer
  • Contact Us
  • Sitemap

The Longbow Converter App 2023

Old AutoCAD, new Windows

Run your high value legacy versions of AutoCAD on new versions of Windows, including 64bit Windows 10 and Windows 11 (32bit also fully supported)


Using the latest runtime technologies to make even the oldest versions of AutoCAD run natively just like they did in Windows XP. - Supports versions AutoCAD R13 (1994) through 2019)


Keep what you know and move your existing AutoCAD to the latest Windows 64bit system. 

No Virtual Machines

No more need for XP Mode. Requires no Virtual machine setup or background management services. Natively run your legacy AutoCAD on Windows 10 and Windows 11 64bit (or 32bit). 

Install and Run 32bit AutoCAD on 64bit Windows

Keep your valuable work processes alive by running your 32bit AutoCAD natively on 64bit Windows. 


Being able to run your existing 32bit AutoCAD on 64bit Windows can be extremely important, here's why...


  • Your whole business revolves around a single version of AutoCAD
  • Dependency on 3rd party plugin


                A lot of AutoCAD users depend on functionality that comes from a 3rd party AutoCAD plug-ins and this plug-in simply won't run on any other version of AutoCAD than the version you are using


  • VBA Performance


                 64bit AutoCAD VBA can be almost 1000x slower vs 32bit AutoCAD VBA making making your valuable scripts frustrating to use


  • Device specific 32bit driver dependency


                32bit external device drivers driving CNC machines or other large investment not compatible with 64bit AutoCAD (only 32bit AutoCAD)


Solve AutoCAD Installer issues

Whatever installer error is preventing you from installing your AutoCAD our Converter App provides the solution (includes full support for AutoCAD versions that utilize 16bit setup media)


  • You are attempting to use a 32-bit installer on a 64-bit operating system


  • You cannot install this product on the current operating system


  • This is 32-bit AutoCAD. It cannot be installed on 64bit Windows


  • This operating system is not supported by AutoCAD


  • This app can’t run on your PC
  • System requirements error. Wrong OS, AutoCAD Supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98 


  • An administrator has blocked you from running this app.
  • This app has been blocked for your protection


Your AutoCAD license is not valid

Fixes all known compatibility issues

Our Converter App solves all the common problems related to running old XP compatible software on new versions of Windows; security permissions, platform runtime checks, install failures, runtime crashing and more... 


  • NOTE: the software does not fix existing bugs in AutoCAD although we do provide detailed service pack patching information as part of our install instructions in order to address known bugs
  • NOTE: the software does not support updating hardware drivers to work with old versions of AutoCAD. 

AutoCAD Error Aborting FATAL ERROR: Out of Memory

Your AutoCAD license is not valid

Included Tools and Extensions

The latest tools and extensions include multiple new features that maximize the performance of your old software running on the latest hardware, including...


  • Large Memory Tool


                Configure your 32bit AutoCAD to utilize up to 4GB of RAM on a 64bit system (instead the standard 2GB limit) - doubling your software's accessible RAM and significantly reducing your chances of running out of memory


  • Run in Offline Mode


                Block all internet access to and from your AutoCAD to prevent external interference via tracking or monitoring ensuring the existing state of your AutoCAD can never be affected


  • Uninstall all Autodesk Products


                Want to remove all Autodesk products from your PC, use this tool to uninstall each and every Autodesk product from your PC

Fully documented

Check out our How to help blog on installing your legacy AutoCAD on 64bit Windows 10 and Windows 11 - simply search for your AutoCAD version.


Here are some examples...


  • AutoCAD R13 
  • AutoCAD R14 
  • AutoCAD 2000 AutoCAD 2000i AutoCAD 2002
  • AutoCAD 2004 
  • AutoCAD 2005 AutoCAD 2006 AutoCAD 2007
  • AutoCAD 2008 AutoCAD 2009 AutoCAD 2010 
  • AutoCAD 2011 AutoCAD 2012 AutoCAD 2013 
  • AutoCAD 2014 AutoCAD 2015 AutoCAD 2016 
  • AutoCAD 2017 AutoCAD 2018 
  • AutoCAD 2019 
  • NOTE: Autodesk stopped making 32bit AutoCAD since AutoCAD 2020


Supported AutoCAD versions

We support running over 1300 combinations of AutoCAD versions (dating back to 1993)...


All the versions listed below are fully supported on Windows 10 and Windows 11 (32bit and 64bit)


AutoCAD R13 (Windows version support only)

AutoCAD R14 (non-dongle support only)

AutoCAD 2000 (non-dongle support only)

AutoCAD 2000i (US unlocked support only)

AutoCAD 2002 (US unlocked support only)

AutoCAD 2004 (US unlocked support only)

AutoCAD 2005, 2006, 2007

AutoCAD 2008, 2009, 2010 (full 32bit and 64bit support)

AutoCAD 2011, 2012, 2013 (full 32bit and 64bit support)

AutoCAD 2014, 2015, 2016 (full 32bit and 64bit support)

AutoCAD 2017, 2018 (full 32bit and 64bit support)

AutoCAD 2019 (full 32bit and 64bit support)

AutoCAD 2020 (64bit "Run offline" support only)

AutoCAD 2021 (64bit "Run offline" support only)

AutoCAD 2022 (64bit "Run offline" support only)

AutoCAD 2023 (64bit "Run offline" support only)


Special versions of AutoCAD (aka verticals) are also supported against the list above including....


AutoCAD LT

AutoCAD Raster Design

AutoCAD ADT/AutoCAD Architecture/Softdesk

AutoCAD Mechanical/AutoCAD MDT

AutoCAD Civl3d (no support for 2011, 2012)

AutoCAD Electrical/AutoCAD MEP

AutoCAD Land/AutoCAD LDT

AutoCAD Plant3d

AutoCAD Map3d

AutoCAD OEM

Purchase Product

Copyright © 2023 Longbow Software - All Rights Reserved.

Powered by dedication

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

Accept