This article was previously published under Q128930
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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
When you start the first 16-bit application after installing Windows NTversion 3.5 Service Pack 2, the following error message may appear:
NTVDM.EXE has encountered a system error The handle is invalid.
Choose Close to terminate the application or Ignore.
If you choose Ignore, the 16-bit application continues to run correctly.In addition, when you shut down Windows NT, the following message appears:
NTVDM is Busy Choose end task or wait.
To work around this problem, expand VGA.SY_ and VIDEOPRT.SY_ from theWindows NT Server or Workstation version 3.5 installation media to the%systemroot%\SYSTEM32\DRIVERs subdirectory as VGA.SYS and VIDEOPRT.SYS.
Microsoft has confirmed this to be a problem in Windows NT version 3.5. Weare researching this problem and will post new information here in theMicrosoft Knowledge Base as it becomes available.