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

Installing AutoCAD Land Development Desktop R2i on Windows 7, Windows 8 and Windows 10

Installing AutoCAD Land Development Desktop R2i (LDDT R2i) on Windows 7, Windows 8, Windows 8.1 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.

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 – you will need version 8.56 or newer
  2. Using Windows Explorer, copy your entire LDDT R2i 2000i installation CD to your hard drive, specifically to a folder path of c:\Autodesk\CD\ldtr2000i
  3. Start the Longbow Converter tool, select the 2nd tab “Old AutoCAD Installer Reviver”, pick the c:\Autodesk\CD\ldtr2000i folder, and click Run. Read and understand any/all the prompts the Converter pops up before pressing OK.
  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:\ldt2000i (not C:\Program Files (x86)\Land Desktop R2\ as usually prompted)**
    1. Install as normal
    2. If you see the “AutoCAD Land Development Desktop 2i Migration assistant” dialog appear, say “No” – we did not test that installation path.
    3. Do not reboot if prompted to do so
  5. Make sure the setup is completely closed down, next, go back to the Converter tool, select the 3rd tab “Old AutoCAD Program Reviver”, pick the newly installed c:\ldt2000i folder and click “Fix
  6. Now you can run your Land Desktop R2i on Windows 7, Windows 8, and Windows 10, but be sure to read the Troubleshooting guide below…

Installing Autodesk Civil Design 2i

Once you have installed AutoCAD Land Development Desktop R2i using the above instructions, you can now install Civil. Here’s how:

  1. Using Windows Explorer, copy your Autodesk Civil Design 2i installation CD to your hard drive, specifically to a folder path of c:\Autodesk\CD\CivilDesign2000i
  2. Start the Converter again, select the 2nd tab “Old AutoCAD Installer Reviver”, pick the c:\Autodesk\CD\CivilDesign2000i folder, and click “Run“.
    1. If the Converter asks you “What type of installer is this? – Is this a service pack , update or plug-in/app…?” – say “Yes”.
    2. Read and understand any/all the prompts the Converter pops up before pressing OK
  3. Install as normal.
    1. If you cannot find your menu items, you may need to MENULOAD c:\ldt2000i\Support\Civil.mnu

Installing Autodesk Survey 2i

Once you have installed AutoCAD Land Development Desktop R2i using the above instructions, you can now install Survey. Here’s how:

  1. Using Windows Explorer, copy your Autodesk Survey 2i installation CD to your hard drive, specifically to a folder path of c:\Autodesk\CD\Survey2000i
  2. Start the Converter again, select the 2nd tab “Old AutoCAD Installer Reviver”, pick the c:\Autodesk\CD\Survey2000i folder, and click “Run“.
    1. If the Converter asks you “What type of installer is this? – Is this a service pack , update or plug-in/app…?” – say “Yes”.
    2. Read and understand any/all the prompts the Converter pops up before pressing OK
  3. Install as normal.
    1. If you cannot find your menu items, you may need to MENULOAD c:\ldt2000i\Support\Survey.mnu

The LDT R2i Service Pack

  1. First download the Land Desktop 2i Civil Design 2i Service Pack 2 (stand-alone and network) from here and save to c:\Autodesk\sp
  2. Next, start the Converter, select the 3rd tab “Old AutoCAD Program Reviver” select the c:\Autodesk\sp folder, then click Fix.
    1. If asked if this is a service pack by the Converter tool, say yes.
  3. Now run the ld2i_sp2_ul.exe as normal from Windows Explorer.

Troubleshooting:

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 first install Windows 10, then you need the Longbow Converter tool to install your AutoCAD – 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

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 a newer Windows version – I have some advise for you: 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, 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) just be sure to do of a couple of things…

  1. First, *you must* have the latest version of the Longbow Converter (see below); we are constantly updating this solution to solve the ever changing world of Windows and their security updates.
  2. Second, find your particular Windows upgrade scenario below and follow the instructions ***precisely*** as documented!.
All AutoCAD users running Windows 7, Windows 8 and Windows 8.1 upgrading to Windows 10

Our Longbow Converter tool fully supports 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. Finally, reinstall your AutoCAD as you did previously using the instructions on this blog (if your specific instructions are missing or not up to date with Windows 10, please let us know by clicking on this link and we’ll get it written up for you)
  2. Obtain the latest Longbow Converter supporting Windows 10 here
  3. Upgrade to Windows 10
  4. Make sure you uninstall any previously installed Longbow Converter versions.
  5. Make sure you uninstall all AutoCAD products before doing the upgrade to Windows 10, you *must* do this otherwise your AutoCAD may never startup again and you will have to wipe your computer to fix it.
  6. 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 2017 (c) Longbow Software

Installing AutoCAD 2000i on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing AutoCAD 2000i 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.

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 AutoCAD 2000i CD to your hard drive, to a folder path c:\Autodesk\acad2000i 
  3. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\acad2000i 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:\acad2000i (not Program Files (x86)\AutoCAD 2000i as usually prompted by default)**
  5. Once installed, go back to the Converter tool, select the 3rd tab, pick the newly installed c:\acad2000i folder and click Fix.
  6. Now, you can happily run your AutoCAD 2000i on Windows 10, Windows 7 and Windows 8.
Installing the AutoCAD 2000i sp2 service pack
 
  1. download the locked AutoCAD 2000i sp2 from here or download the unlocked AutoCAD 2000i sp2 from here
  2. Next, unzip and save the service pack file to c:\Autodesk\sp – do not install yet
  3. Go back into the Converter, select the 3rd tab, select the c:\Autodesk\sp folder and click Fix.
  4. Install the 2000i sp2 by running either the c:\Autodesk\sp\u090_u181p.exe for unlocked or c:\Autodesk\sp\u090_u181p_swl.exe for locked
  5. Once your sp is installed, start the Longbow Converter tool again; we are going to repeat some of the steps from the original installation before. Select the 2nd tab, pick the copy of your AutoCAD 2000i CD on your hard drive which last time was in c:\Autodesk\acad2000i folder, now select the 3rd tab, select the install folder c:\acad2000i now click Fix.
  6. Now, you can happily run your AutoCAD 2000i with sp2 on Windows 10, Windows 7 and Windows 8.
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 2015 (c) Longbow Software

Install Autodesk Architectural Desktop 3 on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing AutoCAD Autodesk Architectural Desktop 3 (AutoCAD 2000i) 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.

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 Autodesk Architectural Desktop 3 CD to your hard drive, to a folder path c:\Autodesk\CDs\adt2000i 
  3. Start the Longbow Converter tool
    1. Select the 2nd tab named “Old AutoCAD Installer Reviver
    2. Pick the newly copied c:\Autodesk\CDs\adt2000i  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:\adt2000i (not Program Files (x86)\Autodesk Architectural Desktop 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:\adt2000i folder
    3. Click the “Fix Old Program” button.
  6. Now, you can happily run your Autodesk Architectural Desktop 3 on Windows 10, Windows 7 and Windows 8.
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 LT 2000i on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing AutoCAD LT 2000i 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.

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 AutoCAD LT 2000i CD to your hard drive, to a folder path c:\Autodesk\acadlt2000i 
  3. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\acadlt2000i 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 acadlt2000i (not Program Files (x86)\AutoCAD LT 2000i as usually prompted by default)**
  5. Once installed, go back to the Converter tool, select the 3rd tab, pick the newly installed c:\acadlt2000i folder and click Fix.
  6. Now, you can happily run your AutoCAD LT 2000i on Windows 10, Windows 7 and Windows 8.
Installing the AutoCAD LT 2000i sp2 service pack
 
  1. download the locked AutoCAD LT 2000i sp2 from here or download the unlocked AutoCAD 2000i LT sp2 from here
  2. Next, unzip and save the service pack file to c:\Autodesk\sp – do not install yet
  3. Go back into the Converter, select the 3rd tab, select the c:\Autodesk\sp folder and click Fix.
  4. Install the LT 2000i sp2 by running either the c:\Autodesk\sp\u090_u181p.exe for unlocked or c:\Autodesk\sp\u090_u181p_swl.exe for locked
  5. Once your sp is installed, start the Longbow Converter tool again; we are going to repeat some of the steps from the original installation before. Select the 2nd tab, pick the copy of your AutoCAD LT 2000i CD on your hard drive which last time was in c:\Autodesk\acadlt2000i folder, now select the 3rd tab, select the install folder c:\acadlt2000i now click Fix.
  6. Now, you can happily run your AutoCAD LT 2000i with sp2 on Windows 10, Windows 7 and Windows 8.
Troubleshooting:

Copyright 2015 (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