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Microsoft KB Archive/103325

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WOWEXEC Errors Caused by Incorrect COMMAND.COM File

Article ID: 103325

Article Last Modified on 11/1/2006



APPLIES TO

  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.1
  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition



This article was previously published under Q103325

Windows NT provides a COMMAND.COM file that must be used for MS-DOS-based and Windows 3.0 or 3.1-based applications to run properly. If the COMMAND.COM file that Windows NT provides is replaced with a version from MS-DOS, an error message occurs just after a successful logon.

MORE INFORMATION

If the COMMAND.COM file provided with Windows NT is replaced with a COMMAND.COM file from MS-DOS version 3.3, 4.01, or 6.0, the following error message appears:

wowexec
config.nt. The system file is not suitable for running DOS and WINDOWS applications. Choose 'Close' to terminate the application.



If the COMMAND.COM file provided with Windows NT is replaced with a COMMAND.COM file from MS-DOS version 5.0, the following error message appears:

wowexec
An application has attempted to directly access the hard disk, which cannot be supported. This may cause the application to function incorrectly. Choose 'Close' to terminate the application.



If one of the above error messages appears, make sure that the COMMAND.COM file provided with Windows NT is located in the WINNT\SYSTEM32 subdirectory. The correct COMMAND.COM file should have the following size/date:

Windows NT
version:       Size:       Date:
----------     -----       --------
3.1            49931       07/24/93
3.5            50045       09/04/94
3.51           50045       05/26/95
4.0            50384       08/02/96
                



This file can be expanded off of the original media. It is located in the following locations in compressed form as COMMAND.CO_:

Windows NT
version:      CD-ROM    3.5-inch disk    5.25-inch disk
----------    ------    -------------    --------------
3.1           \I386     Disk #20         Disk #25
3.5           \I386     Disk #17         N/A
3.51          \I386     Disk #20         N/A
4.0           \I386     N/A              N/A
                


Additional query words: prodnt 3.10 wowexec.exe wow

Keywords: kbinterop kb3rdparty KB103325