Symptom: When you open a DOS shell or if you run some programs in the DOS shell, you will get an error: Cannot load VDM IPX/SPX support

Causes: On Windows 2000 (maybe Windows XP and others), when you install CSNW and Novell's Netware client, it adds extra stuff to your autoexec.nt file. When you uninstall the client, it leaves a few turds around on your system (don't they all?) that could cause problems.

Solution: Edit your %SystemRoot%\system32\autoexec.nt file and delete three lines.

• Double-click on my computer
• Double-click on C:
• Look for "WINNT" or "WINDOWS". Remember which one you saw.
• Start -> Run
• Type in notepad c:\winnt\system32\autoexec.nt
  If you saw "WINDOWS" instead of "WINNT" use notepad c:\windows\system32\autoexec.nt
• Look for these lines:

  REM Install network redirector
  lh %SystemRoot%\system32\nw16
  lh %SystemRoot%\system32\vwipxspx
  

• Delete those three lines, and only those three lines.
• File -> Save
• Close Notepad – You are done!

Problem solved.