Application Compatibility Flag Registry Setting for DOS Application Not Read Correctly

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Article ID: 214500 - View products that this article applies to.
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Normally, an administrator can use the registry to set compatibility flags for specific applications being run on Windows Terminal Clients. For example, adding the following registry key and value to HKEY_LOCAL_MACHINE on the Terminal Server will force the application, in this case NTVDM, to use the Terminal Server's Windows System folder, instead of the user's Windows folder:

   Software\Microsoft\Windows NT\CurrentVersion\Terminal Server\Compatibility\Applications\ 

   VALUE: Flags  reg_dword  0x400

This setting can be used to force all applications running within NTVDM to use the _Default.pif file on the server for custom settings, rather than requiring the administrator to copy the _Default.pif file to the Windows folder of each user.

After you add the Application Compatibility Flag to the registry, the application does not respond to the flag.

For additional information, see the following article or articles in the Microsoft Knowledge Base:
186499 Terminal Server Registry Settings for Applications


The system does not correctly retrieve the application name. Therefore, the application compatibility flag in the registry is not found.


To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack


Microsoft has confirmed that this is a problem in Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT Server 4.0, Terminal Server Edition Service Pack 4.


Article ID: 214500 - Last Review: October 14, 2013 - Revision: 1.3
  • Microsoft Windows NT Server 4.0, Terminal Server Edition
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix kbqfe KB214500

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