Microsoft KB Archive/191387

= Unable to Run 16-bit Applications If FILES= Is Greater Than 255 =

Article ID: 191387

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q191387



SYMPTOMS
Window NT Virtual DOS Machine (NTVDM) may not allow 16-bit applications to run after installing Windows NT on a computer where the previous operating system had a parameter of FILES=255 or greater in Config.sys file.



CAUSE
Windows NT copies the FILES= value from the Config.sys file into the Config.nt file during setup. Any value for FILES= greater than 255 copied into Config.nt will prevent 16-bit applications from starting.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or 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



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

Keywords: kbhotfixserver kbqfe kbbug kbfix KB191387

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