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Run old versions of AutoCAD on 64bit Windows 7, Windows 8, Windows 10

The Longbow Converter App 2019

Install and run all versions of AutoCAD on Windows 7, Windows 8, Windows 8.1, Windows 10 both 32bit and 64bit.

Latest News: Full AutoCAD 2019 support!
The new version of the Converter now supports installing 32bit AutoCAD 2019 on 64bit Windows!

The Longbow Converter makes your 32bit AutoCAD run on Windows 7 and Windows 8

What the Longbow Converter App solves...

Do you have one of the
issues with your AutoCAD or AutoCAD installer:

  • You have a new computer running Windows 7, Windows 8 or Windows 10 and you just want to install your AutoCAD but it refuses to install with messages like...

    - "This operating system is not supported by AutoCAD®"
    - "You cannot install this product on the current operating system"
    - "You are attempting to use this 32-bit installer on a 64-bit operating system"
    - "This is a 32-bit AutoCAD® 'version'. It cannot be installed on 64-bit Windows"
    - "Wrong OS. AutoCAD® supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98"
    - "This app cannot run on your PC"
  • Your AutoCAD is installed on a new Windows 7, Windows 8 or Windows 10 platform and are experiencing random crashes or issues like...

    - interactions with the Ribbon crash AutoCAD
    AutoCAD is installed and running but it won't hold or keep the authorization

  • You are using some 3rd party AutoCAD application plug-ins written in ObjectARX, VBA, VB6, or .NET which can only run on 32bit AutoCAD? Maybe you have specific AutoCAD CNC control software that only works in 32bit? Some examples of 32bit apps that the Longbow Converter has already helped people get working again on 64bit Windows...
    • Bentley Road, Bentley Inroads, Site Design, Bentley MX, Bentley WaterCAD, ProSteel 3D 
    • Microvellum Cabinet Maker, Smartlister, Vitruvian Built, SmartMachining, CGSurvey
    • Stabiplan's StabiCAD and StabiBase, AutoStage Pro, EBOM Electrical, ER Mapper,
    • Softdesk AEC, Softdesk Building Systems, Softdesk Civil/Survey,  GE XA21 DBF
    • YFCAD InteriCAD 6000 7000 T5, CADCode/ACAM, Accubid CADLive, Keytrix, AutoTURN
    • Tyco Sprinkcad, SurveyMBS, Flairbase Amine, AutoNest, Easy Hatch, ProCAD, Mitek WoodEngine,
    • 20-20 CAP Studio, 20-20 SymbolSource for Allsteel, BlueCielo InnoCielo Meridian
    • CADKON, C & G Surveying software for AutoCAD, PAMCAD, FastrackCAD, EDMWire
    • GlobalCad Toolbox LT, ELCOVISION, APS for Architecture, Carson Survey, 3DConstructor
    • Mensch und Maschine, Basepoint, Softech PLM and RMData AutoCAD based products  
    • Mentor Graphics VeSys, faciliCAD, BOSS RiverCAD Pro, AutoCAD OEM, SOFiCAD (all SOFiSTiK AutoCAD plugins), and more!

  • You have VBA code which runs very slowly or doesn't even work on 64bit AutoCAD? This is because AutoCAD VBA runs in a whole separate exe away from AutoCAD on 64bit Operating Systems, making it almost 1200 times slower than AutoCAD VBA running 32bit AutoCAD.

  • You have Oracle Server or general ODBC functionality which doesn't work on 64bit AutoCAD or is very slow because Oracle and/or Microsoft's ODBC drivers/Jet Engine drivers only support 32bit.

  • You can't use the Visual Studio 'Program Edit and Continue' feature or Mixed Mode Debugging is unbearably slow when debugging 64bit AutoCAD 

  • You're finding that AutoCAD 64bit is slower than AutoCAD 32bit? That's because 64bit Windows are not automatically faster than their 32bit counterparts. In some cases, they may even perform slower because of the larger memory accessors as well unrelated OS overheads.

  • Your 32bit AutoCAD is running out of memory? The 2GB RAM limit is not enough especially when you are missing out on a potential 4GB available to you on 64bit Windows!

  • You are getting a Run-time error '429': ActiveX component can't create object because your mixing 64bit DLLs inside of the 32bit VBA module?

  • You have a custom application that depends on a 32bit VB6 ActiveX control like MSFlexGrid/MSHFlexGrid and it wont run on 64bit AutoCAD 

  • Or if you just want to use the software that you already have...
...then the Longbow Converter can help you... It converts your software so that your old versions of AutoCAD will install and run again, totally normally, on your 64bit Windows 7, Windows 8, Windows 8.1, Windows 10 or Windows Vista machine. 

Works with...
  • All non-dongled versions of AutoCAD
    • Versions: R13, R14, 2000, 2000i, 2002, 2004, 2005, 2006, 2007
    • and 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
    • NOTE: locked 2002 and 2004 not currently supported on 64bit Windows (only 32bit)
  • Including
    • AutoCAD Architecture/ADT/Softdesk
    • AutoCAD MDT/Mechanical/Mechanical Desktop
    • AutoCAD Electrical
    • AutoCAD Plant 3D
    • AutoCAD MEP
    • AutoCAD Civil 3D
    • AutoCAD Map3D
    • AutoCAD LT
    • AutoCAD Land Desktop/LDT
    • AutoCAD Civil 3D Land Desktop Companion
    • AutoCAD Raster Design
    • AutoCAD OEM
    • 32bit VBA Enabler
  • Full Support for R13, R14, 2000, 2000i, **2002, **2004, 2005, 2006, 2007 (and vertical variants such as Map, Civil, ADT, etc) 
    • **NOTE Versions 2002 and 2004 are only supported on 64bit Windows if you have an "Unlocked US English" media. Full support for all locked multi-language versions of 2002 and 2004 only on 32bit Windows at this time.

New tools included with the latest version!

All new Large Memory Addressing Tools!!

Configure your 32bit AutoCAD so that it will then be capable of using up to 4GB of RAM on a 64bit system, instead of the age old and restrictive 2GB limit. 

          AutoCAD Error Aborting. Fatal Error: Out of Memory - shutting down.     
 No more "Out of Memory" errors!!! 

(NOTE: This tool also works on Windows 32bit, however, the system must be configured to use the /3GB switch in order to increase limit to 3GB of RAM per process)

Disable Windows 64bit Device Driver Signing Verification

If you are running a locked version of AutoCAD (e.g. 2002, 2004, etc) and are having problems with running Macrovision Safecast/C-Dilla and/or the Softlock License Manager on 64bit Windows (Error [1.248.1001] or Error [7.1.29] or Error [436.4.1] for instance) - NOTE: this feature is not currently supported.

Specially built
 'Old AutoCAD Installer Reviver' and 'Old AutoCAD Program Reviver' tools.

Both override the latest Windows security restrictions so that your old AutoCAD will install and run properly on Windows 7, Windows 8, Windows 8.1, Windows 10 and Vista 32bit and 64bit. The tool also fixes AutoCAD LT "BEX" errors!

Works with... 

  • AutoCAD R13, R14, 2000, 2000i, **2002, **2004, 2005, 2006, 2007
    • **NOTE Versions 2002 and 2004 are only supported on 64bit Windows if you have an "Unlocked US English" media. Full support for all locked multi-language versions of 2002 and 2004 only on 32bit Windows at this time
  • AutoCAD LT95, LT97, LT98, LT 2000, LT 2000i, LT 2002, LT 2004, LT 2005, LT 2006, LT 2007
  • AutoCAD LDD/LDT Release 1, 2 and 3 including the Civil Design, Survey add-on's
  • AutoCAD AEC Professional Suite 1, 2 and 3
  • and all other equivalent version AutoCAD variants (there are just too many to list!)
    • NEW! Autodesk Inventor Series 11 (2007)
    • NEW! Autodesk Inventor Suite 2008


      Convert AutoCAD 32bit, 32 bit installer MSI 64bit 64bit OS Windows 7 Windows Vista, 64bit, 64 bit, out of process, ODBC on 64bit Windows, Jet Driver on 64bit Windows, CheckFor64BitOS, PLATFORM=NO_WOW_64_PROCESS, InstallExecuteSequence. The Longbow Converter makes 3rd party ObjectARX or .NET plugins work on 64bit Windows. The Longbow Converter fixes Slow VBA, makes your Visual Studio 32bit Debugging easier with AutoCAD 32bit, failed objectdbx.z, it also lets Visual Studio Edit and Continue feature start working again. If you are working in x86 or x64 AutoCAD LT, AutoCAD Map 3D, AutoCAD 2012, AutoCAD Land Desktop, LDT, AutoCAD Architecture, ADT, AutoCAD Civil 3D then the Longbow Converter is for you. This solution fixes all Bentley Road, Bentley Inroad, Site Design, Bentley MX on Windows 64bit issues. All versions of 32bit Cap Studio 20-20 are supported to run on 64bit Windows. Microvellum Cabinet maker woodworking software is fully supported. Some compatibility flags that are supported are: WINXPSP2, RUNASADMIN, ELEVATECREATEPROCESS, DisableNXShowUI, LARGEADDRESSAWARE, editbin.exe, /3GB.  if you are having problems with Bentley WaterCAD then our solution offers the fix. Error messages the the Longbow Converter resolves are as follows “不支持此操作系统。”,  “不支援此作業系統.”,“Produkt AutoCAD tento operační systém nepodporuje.”,“Dieses Betriebssystem wird von AutoCAD nicht unterstützt.”,“Este sistema operativo no es compatible con”,“Ce système d'exploitation n'est pas pris en charge par”,“Ezt az operációs rendszert nem támogatja a(z)”,“Questo sistema operativo non è supportato da”,“このオペレーティング システムは"、”ではサポートされていません。“, “이(가) 지원하지 않는 운영 체제입니다“,“Ten system operacyjny nie jest obsługiwany przez”,“Данная операционная система не поддерживается программой“. The Longbow Converter software works with Tyco Sprinkcad too. The Longbow Converter software works with SurveyMBS perfectly. The Longbow Converter software works with Flairbase Amine addins for 32bit. If you need to run your AutoCAD plugin AutoNest our Longbow Converter solution works perfectly. The Longbow Converter software works with GlobalCad Toolbox LT running on Windows 7. Run-time error '429': ActiveX component can't create object is a typical error message that the Longbow Converter resolves. The Longbow Converter software works with "C & G" Surveying software for AutoCAD. The Longbow Converter software works with APS for Architecture too. If you use the Bentley products such as Bentley Inroads and want to use it on Windows 64bit then the Longbow Converter is for you. If you are using 'Easy Hatch' as a 32bit application, then the Longbow Converter is what you need..Installing 32bit Mentor Graphics VeSys on 64bit Windows is supported.Using the Longbow Converter you can make your copy of faciliCAD work fast again.The Converter allows VisionFM from Cappstone to install on Windows 7 64bit. The Longbow Converter fully supports 32bit Smartlister on Windows 64bit. The Longbow Converter fully supports 32bit Viturivan on 64bit Windows.Works with Keytraffic systems Keypost and Autostripe.The Longbow Converter also supports installing 32bit AutoQuotes on 64bit Windows. The Longbow Converter also supports installing 32bit Keytraffic Keysign on 64bit Windows. The Longbow Converter also supports installing 32bit Keytraffic KeySIGNALS on 64bit Windows. The Longbow Converter also supports installing 32bit Keytraffic KeyOSC on 64bit Windows. We support all of these AutoCAD OEM solutions - Elstree Computing CADMeasure, Cyril Sweett CADLink4D, Schüco Service S-CAD, TinLine TinLineplan, ALPI S.A.Caneco Implantation, 3-Design LLC 3D+, Cesi2D Cesiom, MultiSUITE Software MultiSUITE CAD, LiNear liNear Smart Engineering, MC4 MC4 Suite, Calnan Scott Design CSArtisan, Dataflor GreenXpert, Key Systems KeyPlanting, Key Paving, Key HardWorks, Analist Group Pregeo 8, Intechnedvizimost ValMaster, Digicorp Ingegneria SpA - Cad&Pilar, State Enterprise Center of Registers - NT Matininkas, ITWH GIPS, GIPS-Light, AXProfessional - AC Pro, BauCAD AICAD Stair Wood, AICAD Stair Steel,  AICAD Stair CNC, Cadvanced Applications Cabinet Designer, CAD+T Software GSD Graphical Sales Designer, CAD Interior LT, Deco Software - Modular Cocinas, Dr. Prekwinkle Imos act, Imos plan MicroCAD Informatica SL - Autokitchen Pro, AutoKitchen Studio, MicroCAD Informatica SL - AutoDecco, ASK Computertechnik MesseCAD, Softwert Hadi, IT & Factory - Pipe-Compact VIG.DAO VIG-Isolation, ALPI - Caneco, Betacad Srl - Elettra, Electrographics iDEA, Mentor Graphics Capital Engineer, SDProget Industrial Software Spac Impianti CAD, SDProget Industrial Software Spac Automazione CAD, Data M Software Copra RF, Siemens A&D Simatic Automation Designer, Eficad Sarl EFICN-B, 20-20 Technologies Spiwood. The Longbow Converter works with YFCAD InteriCAD. AutoCAD AEC Professional Suite, Civil Design 3, etv1-9.exe, Bonus tools, Express Tools ,bad_mem_pointer,mem_bad_pointer,smartheap error handler recursively re-entered, sh31w32.dll,saint gobain,transoft