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Q138712: Command Window Does Not Close When TSR Issues INT5c For DLC

Article: Q138712
Product(s): Microsoft Windows NT
Version(s): winnt:3.51
Operating System(s): 
Keyword(s): kbnetwork
Last Modified: 08-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Workstation version 3.51 
- Microsoft Windows NT Server version 3.51 
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SYMPTOMS
========

When you load any terminate-and-stay-resident (TSR) program from AUTOEXEC.NT
that issues INT5c to do DLC work in the MS-DOS Command Prompt window, the window
does not close.

CAUSE
=====

The TSR is running in a win32 process (NTVDM.EXE) which has loaded VDMREDIR.DLL
and DLCAPI.DLL. These DLLs should close the adapter when the program terminates.
In either case, the adapter should be closed by the DLC device driver when the
program terminates.


STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 3.51. A fix
to this problem is in development, but has not been regression-tested and may be
destabilizing in production environments. Microsoft does not recommend
implementing this fix at this time. Contact Microsoft Product Support Services
for more information on the availability of this fix.


Additional query words: prodnt DLC.SYS

======================================================================
Keywords          : kbnetwork 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS351search
Version           : winnt:3.51

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