Access Violation in Cmd.exe When Processing Batch File Script

 Last reviewed: May 20, 1997
Article ID: Q167010
The information in this article applies to:
  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0

SYMPTOMS

An access violation may occur in Cmd.exe when processing a batch file script that contains a set statement that sets an environment variable surrounded by % (percent) characters.

For example: 

   set %LOG%=c:\tmp\log.txt
when LOG is not an existing environment variable.

An access violation may also occur when processing a batch file in which a variable name is set that begins with an equal sign.

CAUSE

The error condition was not handled correctly.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was corrected in the latest Microsoft Windows NT 4.0 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces): 

   S E R V P A C K

Keywords          : kbbug4.00 kbfix4.00 kbfix4.00.sp2 ntgeneral NTSrvWkst kbbuglist kbfixlist kbhelpfile
Version           : 4.00
Platform          : winnt
Hardware          : x86
Issue type        : kbbug
Solution Type     : kbservicepack

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Last reviewed: May 20, 1997
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