Installing WordPerfect 6 on Windows 7, Windows 8 and Windows 10

If you are having problems installing your WordPerfect 6 on your new PC, like you are unable to run the setup.exe as shown below, then read on…

Windows 16bit setup error - This app can't run on your PC

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

Unfortunately, WordPerfect 6 is a pure 16bit application which means that it cannot be run on 64bit Windows 7, Windows 8 or Windows 10. However, it can only run on *32bit* Windows 7, Windows 8 or Windows 10 using the Longbow Reviver app.

  1. Obtain your copy of the Longbow Reviver tool here – you need version 4.10 or newer
  2. Using Windows Explorer, copy your entire WordPerfect 6 install CD media to your hard drive, to a folder path c:\InstallCDs\WordPerfect6
  3. Start the Longbow Reviver tool
    1. select the 1st tab named “Old Installer Reviver
    2. then using the ‘…’ button pick the  c:\InstallCDs\WordPerfect6\INSTPROG folder
    3. Now click the ‘Fix and Run Old Installer’ button
    4. Read and understand all the prompts that appear, then continue by clicking OK.
    5. Install as normal
    6. Close setup – Do not reboot if prompted to do so
  4. Now WordPerfect 6 is installed
    1. Now go back to the Longbow Reviver app…
    2. select the 2nd tab “Old Program Reviver
    3. using the ‘…’ button pick the newly installed c:\WPWIN60 folder
    4. Set the Run As dropdown to Windows 95
    5. next, click ‘Fix Old Program’
      1. Say ‘No’ if the Reviver tool asks if you want to re-register…
  5. Now you can happily run your WordPerfect 6 on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit (sorry, but not  64bit!)

Copyright 2018 (c) Longbow Software

Installing Microsoft Money 2000 on Windows 7, Windows 8 and Windows 10

Installing Microsoft Money 2000 on WIndows 7, Windows 8 and Windows 10 (both 32bit and 64bit) can be very easily defined in these short steps…

  1. First, you need to purchase a copy of the Longbow Reviver tool here (you need V4.21 or later)
  2. Using Windows Explorer, backup your entire Microsoft Money 2000 installation CD to your hard drive, to a folder path c:\InstallCDs\Microsoft Money 2000
  3. Start the Longbow Reviver tool
    1. select the 1st tab “Old Installer Reviver
    2. then using the ‘…’ button pick the  c:\InstallCDs\Microsoft Money 2000 folder

      Selecting the Microsoft Money 2000 CD on Disk

      Selecting the Microsoft Money 2000 CD on Disk

    3. Now click the ‘Fix and Run Old Installer’ button
    4. Read and understand all the prompts that appear, then continue by clicking OK.
    5. Once the Microsoft Money 2000 setup appears, install as normal *except* when prompted for the installation path, set it to c:\MsMoney2000 e.g.

      Setting the Microsoft Monet 2000 installation folder

      Setting the Microsoft Monet 2000 installation folder

    6. Once the setup is complete
      1. Do not reboot (if prompted to do so)
  4. Now Microsoft Money 2000 is installed, next
    1. Make sure the Microsoft Money 2000 setup is completely closed, then in the Longbow Reviver tool…
    2. Select the 2nd tab “Old Program Reviver
    3. Using the ‘…’ button, pick the newly installed C:\MsMoney2000 folder
    4. Set the Run As dropdown to Windows 95 Windows NT 4 (sp5)
    5. next, click ‘Fix Old Program’
      1. Say ‘No’ if the Reviver tool asks if you want to re-register… e.g.

        Fixing the Microsoft Money program files

        Fixing the Microsoft Money program files

  5. Now you can happily run your Microsoft Money 2000 on Windows 7, Windows 8 or Windows 10!

Copyright 2018 (c) Longbow Software

Installing QuickCAD V4 on Windows 7, Windows 8 and Windows 10

Installing Autodesk QuickCAD V4 on WIndows 7, Windows 8 and Windows 10 (both 32bit and 64bit) can be very easily defined in these short steps…

  1. First, you need to purchase a copy of the Longbow Reviver tool here
  2. Using Windows Explorer, backup your entire QuickCAD V4 installation CD to your hard drive, to a folder path c:\InstallCDs\QuickCAD V4
  3. Start the Longbow Reviver tool
    1. select the 1st tab “Old Installer Reviver
    2. then using the ‘…’ button pick the  c:\InstallCDs\QuickCAD V4 folder
    3. Now click the ‘Fix and Run Old Installer’ button
    4. Read and understand all the prompts that appear, then continue by clicking OK.
      1. The tool will now start initializing the setup interface, and may take up to 45 minutes to start. Please be patient…
    5. Once the QuickCAD V4  setup appears, install as normal *except* when prompted for the installation path, set it to c:\QuickCAD e.g.

      Setting the QuickCAD installation path to c:\QuickCAD

      Setting the QuickCAD installation path to c:\QuickCAD


    6. Once the setup is complete
      1. uncheck ‘Run QuickCAD’
      2. Do not reboot if prompted to do so
  4. Now QuickCAD V4 is installed
    1. Make sure the QuickCAD V4 setup is completely closed, then in the Longbow Reviver tool…
    2. Select the 2nd tab “Old Program Reviver
    3. Using the ‘…’ button, pick the newly installed C:\QuickCAD folder
    4. next, click ‘Fix Old Program’
    5. Say ‘No’ if the Reviver tool asks if you want to re-register…
  5. Now you can happily run your QuickCAD V4 on Windows 7, Windows 8 or Windows 10!

Copyright 2018 (c) Longbow Software

Installing Borland Delphi 3.0 on Windows 7, Windows 8 and Windows 10

If you are trying to install Borland Delphi 3 on Windows 7, 8 or Windows 10 64bit you are probably running into one of these problems…

This app can't run on your PC. To find a version that runs with your PC check with the publisher

This app can’t run on your PC. To find a version that runs with your PC check with the publisher.

Unsupported 16-bit Application - the program or feature cannot start or run due to incompatibility with 64-bit versions of WIndows

Unsupported 16-bit Application – the program or feature cannot start or run due to incompatibility with 64-bit versions of Windows

Luckily, the Longbow Reviver tool can solve this, here’s what you need to do:

  1. Obtain your copy of the Longbow Reviver tool here
  2. Backup your Borland Delphi 3 CD to your Desktop, in a “Delphi 3” folder
  3. Next, start the Longbow Reviver tool and select the “Old Installer Reviver” tab
    1. Using the “…” button select the path to the Desktop\Delphi 3\install folder…

      Selecting the Backup Copy of the Delphi 3 CD on your hard drive

      Selecting the Backup Copy of the Delphi 3 CD on your hard drive

    2. Once you have that selected, click OK and then pick the “Fix and Run Old Installer” button.
    3. Now, be patient, the process for initializing the Delphi 3 setup may take over an hour…
      1. Look out for a folder called _ISTMP0.DIR being created in the install folder, if it’s not there in an hour, restart your computer and try again…
      2. The _ISTMP0.DIR should slowly fill with about 21 files before the setup appears.
  4. Once your Delphi 3 setup appears
    1. step through the setup dialogs as normal until you get to the “Select Directories” dialog
    2. Here, make sure you change the Root folder to c:\Borland (instead of c:\Program Files (x86)\Borland)

      e.g.

      Update the Borland Root pathto c:\Borland

      Update the Borland Root pathto c:\Borland

    3. Make sure they are setup like this…

      Updated the Borland Root path

      Updated the Borland Root path

    4. Now carry on and install as normal until complete
    5. Be patient, it takes a while to complete…
  5. Once the install is complete
    1. make sure the Delphi 3 setup is shutdown.
    2. Go back to the Reviver tool and select the 2nd tab named “Old Program Reviver
    3. Using the ‘…’ button, pick the newly installed c:\Borland folder
    4. Then pick the “Run Old Program” button
  6. Now your Delphi 3 should be up and running…

Copyright 2017 (c) Longbow Software

Installing CSG V3 for AutoCAD R14 on Windows 7, Windows 8 and Windows 10

If you are having problems installing your  CSG V3 for AutoCAD R14 on Windows 7, Windows 8 or Windows 10 32bit or 64bit with errors like…

Unsupported 16-bit Application - the program or feature cannot start or run due to incompatibility with 64-bit versions of WIndows

Unsupported 16-bit Application – the program or feature cannot start or run due to incompatibility with 64-bit versions of WIndows

…then read on…

Installing your CSG V3 for AutoCAD R14 on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 64bit can be very easily defined in these short steps…

  1. Obtain your copy of the Longbow Reviver tool here – you need version 4.10 or newer
  2. Unzip the contents of this zip file CSG Editor V3 for R14 into C:\InstallDisks\CSGR14
  3. Start the Longbow Reviver tool and select the 2nd tab called “Old Program Reviver
    1. Select the path to C:\InstallDisks\CSGR14
    2. Select the ‘Run As” option to Windows 2000
    3. Next, click the ‘Fix and Run Old Installer‘ button.
    4. Read and understand all the prompts before pressing OK. Now, I know it’s unheard of these days, but at this point expect to wait at least 45 minutes for your CSG setup.exe program to appear.
  4. Once the setup starts, stop and read the next step…
    1. If your CSG setup does not start after 45 minutes, read the Troubleshooting section below.
    2. In the setup program, navigate through each setup dialog as normal, except when you get to the installation folder input dialog, **it’s vitally important to make sure you install to your existing AutoCAD R14 folder – install to c:\acadR14 (not c:\Program Files\CSG as usually prompted)**
    3. Now carry on with the install (do not reboot once the install is complete).
      1. Do not reboot if prompted to do so
  5. Once installed, start AutoCAD R14
    1. If CSG doesn’t startup automaticaly, run the APPLOAD command, navigate to c:\acadR14 and load the CSG3.arx
  6. Now you can happily run your CSG V3 in AutoCAD R14 running on Windows 7, Windows 8, Windows 8.1 or Windows 10 32bit or 64bit
Troubleshooting:
  • If your CSG V3 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 CSG from Windows Safe Mode

Copyright 2016 (c) Longbow Software

Installing DrafixCAD on Windows 7, Windows 8 and Windows 10 64bit

If you are having problems installing your DrafixCAD on your new PC, like you are unable to run the setup.exe as shown below, then read on…

Windows 16bit setup error - This app can't run on your PC

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

NOTE: DrafixCAD 3.0 is not currently supported on 64bit Windows, you will need 32bit Windows.

Installing your DrafixCAD on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 64bit can be very easily defined in these short steps…

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 Reviver tool here – you need version 4.10 or newer
  2. Copy your entire Drafix CAD CD to a folder on your hard drive, say C:\DrafixCAD\CD
  3. Start the Longbow Reviver tool and select the 1st tab “Old Installer Reviver
    1. Next, Select the path to C:\DrafixCAD\CD, once selected, hit the ‘Fix Old Installer‘ button.
    2. Once revived, the Reviver will force the setup.exe to start up. It may take up to 45 minutes to start, so go and make some coffee!
  4. When the DrafixCAD setup appears, Install as normal, but make sure:
    1. Don’t install to C:\Program Files (x86), instead, make sure you select a path like C:\Apps\DrafixCAD
    2. Don’t reboot if prompted to do so
  5. Once installed, before running the application, select the 2rd tab in the Reviver tool and then select the path C:\Apps\DrafixCAD, then click the ‘Fix Old Program‘ button.
  6. Now you can happily run your DrafixCAD!

Troubleshooting

  • NOTE: DrafixCAD 3.0 is not currently supported on 64bit Windows, you will need 32bit Windows.

Copyright 2017 (c) Longbow Software

Install Autodesk Architectural Desktop 2i on Windows 10, Windows 7, Windows 8 and Windows 8.1

Most current AutoCAD R2 ADT 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 ADT gives an error like this one…

Windows 16bit setup error - This app can't run on your PC

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

Or maybe this error…

Setup Halted System requirements error Wrong OS, AutoCAD supports Windows NT 4.0, Windows NT 5.0, Windows 95 and Windows 98

Error while trying to install AutoCAD ADT R2

…all is not lost, just read on…

Installing AutoCAD Autodesk Architectural Desktop R2i (AutoCAD 2000) 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…

Obtain your copy of the Longbow Converter here

  1. Using Windows Explorer…
    1. Copy your entire AutoCAD Autodesk Architectural Desktop 2i installation CD to your hard drive, to a folder path named exactly c:\Autodesk\CDs\adt2000 e.g.

      Copy ADT 2000 CD to c:\Autodesk\CDs\adt2000

      Copy ADT 2000 CD to c:\Autodesk\CDs\adt2000

       

  2. Start the Longbow Converter tool
    1. Select the 2nd tab named “Old AutoCAD Installer Reviver
    2. Pick the c:\Autodesk\CDs\adt2000 folder
    3. Now click “Run Old Installer”.
    4. The process will take a few moments to complete, then a dialog will appear – read and understand all the prompts before clicking OK.
  3. For ADT 2000, the Migration Wizard almost instantly pops up, simply click Install 2000 as normal.
  4. Now, I know it’s unheard of these days, but at this point expect to wait at least 45 minutes for your ADT R2i setup.exe program to fully appear.
    1. Once the setup starts, stop and read the next step…
    2. In the setup program…
      1. 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:\adt2000 (not “c:\Program Files (x86)\AutoCAD Architectural Desktop” as usually prompted)**
    3. During the final stages of the installation, simply ignore the fact the the ADT shortcut cannot be created, you will need to create this by hand once the installation is finished.
    4. Do not reboot if prompted to do so
  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:\adt2000 folder and click ‘Fix Old Program‘.
  6. Now you can happily run your AutoCAD Autodesk Architectural Desktop 2i in Windows 7, Windows 8 and Windows 10!
  7. Simply use Windows Explorer, navigate to c:\adt2000 and double click acad.exe (you will need to manually create a shortcut as mentioned in step (4.a)
Installing AutoCAD 2000 Service Pack 1
  1. Download AutoCAD 2000 sp1 from here
  2. Unzip your newly downloaded sp to folder path c:\Autodesk\sp
  3. Start the Converter, select the 2nd tab, pick the c:\Autodesk\sp\AutoCAD 2000 sp1 folder and click ‘Run’
  4. Wait for the setup to appear, it could take up to 45 minutes, then install as normal

Installing AutoCAD 2000 Service Pack 2

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

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 Adobe Photoshop 6 on Windows 10, Windows 7, Windows 8 and Windows 8.1

Installing your Adobe Photoshop 6.0 on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 64bit can be very easily defined in these short steps…

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 Reviver tool here – you need version 4.10 or newer
  2. Using Windows Explorer, copy your entire Adobe Photoshop 6 install CD media to your hard drive, to a folder path c:\InstallCDs\Adobe\Photoshop6
  3. Start the Longbow Reviver tool, select the 1st tab “Old Installer Reviver“, then using the ‘…’ button pick the  c:\InstallCDs\Adobe\Photoshop6 folder
    1. Now click the ‘Fix and Run Old Installer’ button
    2. Read and understand all the prompts that appear, then continue by clicking OK.
    3. You will need to wait up to 45 minutes before seeing the Adobe Photoshop 6.0 setup screen appear, be patient!
      1. If you have waited 90 minutes and nothing has appeared, reboot into Safe Mode and try this same process again.
  4. Once your Adobe Photoshop 6.0 setup screen appears, install as normal except:
    1. When you arrive at the install to ‘Destination Folder” – it is vitally important that you install to c:\adobe\photoshop6 (not C:\Program Files (x86)\Adobe\Photoshop 6.0 as normally prompted)
    2. Do not reboot if prompted to do so
  5. Now Photoshop is installed. In the Longbow Reviver tool, select the 2nd tab “Old Program Reviver“, pick the newly installed c:\adobe\photoshop6 folder and click ‘Fix Old Program’
    1. Say ‘No’ if the Reviver tool asks if you want to re-register…
  6. Now you can happily run your Adobe Photoshop 6 on Windows 10, Windows 7, Windows 8 or Windows 8.1 32bit or 64bit!

Installing the Photoshop 7 Upgrade

If you have a Adobe Photoshop 7 Upgrade CD, simply follow the same instructions as detailed here – Installing Adobe Photoshop 7 on Windows 10, Windows 7, Windows 8 and Windows 8.1

Troubleshooting:
  • If your setup is not appearing within 1 hour, reboot into Safe Mode and try the same process as above again.
Copyright 2015 (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

Installing AutoCAD Map Release 3 on Windows 7, Windows 8 and Windows 10

NOTE: We have had the best success installing this product using our Converter solution on Windows 8 and Windows 10, in fact, we strongly advise using Windows 10 for this product.

Installing your AutoCAD Map R3 (R14.01) 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
  2. Using Windows Explorer, copy your entire AutoCAD AutoCAD Map R3 install CD media to your hard drive, to a folder path c:\Autodesk\mapR14CD
  3. Start the Longbow Converter tool, select the 2nd tab, pick the c:\Autodesk\mapR14CD folder, and click Run. Read and understand all the prompts before pressing OK. Now, I know it’s unheard of these days, but at this point expect to wait at least 45 minutes for your AutoCAD Map R3 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 (the place where you are going to install the program files to your hard drive) **it’s vitally important to make sure you install to c:\mapR14 (not .\AutoCAD Map Release 3 as usually prompted)**
  5. Now carry on with the install (do not reboot once the install is complete). Ignore any errors related to:
    1. not being able to “…create the folder ‘AutoCAD Map Release 3”, you will have to create a shortcut on your computer Desktop to your c:\mapR14\acad.exe by hand.
    2. Failing to register DAO3032.dll
    3. Do not reboot if prompted to do so
  6. Once installed, go back to the Converter tool, select the 3rd tab, pick the newly installed c:\mapR14 folder and click Fix.
  7. Now you can happily run your AutoCAD Map R3 on Windows 7, Windows 8, Windows 8.1 or Windows 10 32bit or 64bit
Troubleshooting:
  • If you are getting either a Bad Mem Pointer error and or a Smartheap handler recursively re-entered error when you start your AutoCAD Map R3 then you need to re-run all the steps above, taking care to do each step precisely as it says.
  • 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 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