MS-DOS 6 Upgrade Setup /M Erroneously Updates SYSTEM.INI (111965)

The information in this article applies to:
    Microsoft MS-DOS operating system 6.0

This article was previously published under Q111965


After you perform a minimal installation of the MS-DOS 6 Upgrade (SETUP /M) on a system with Microsoft Windows 3.x or Windows for Workgroups 3.x, the following error message appears when you start Windows:

Cannot find a device that may be needed to run Windows in 386 enhanced mode.

You need to run the Setup program again.
Press a key to continue..
At this point, the system stops responding (hangs).


If you use SETUP /M, the setup program incorrectly updates the [386Enh] section of the Windows SYSTEM.INI file by replacing the line DEVICE=*VFD with the following


where <directory> contains the current MS-DOS 6.0 files.

Since the installation of Microsoft Backup for Windows is not included in a SETUP /M installation, the 386 enhanced mode virtual floppy device driver used by the utility (VFINTD.386) is not present in the MS-DOS 6.0 directory, causing Windows to generate the error message.


To correct this problem, expand the file VFINTD.38_ from Disk 3 (in the 5.25-inch disk set) or Disk 2 (in the 3.5-inch disk set) of the MS-DOS 6.0 Upgrade disks to the MS-DOS 6.0 directory as VFINTD.386, or edit the SYSTEM.INI file, remove the line


and replace it with


Modification Type: Major Last Reviewed: 11/26/1999
Keywords: KB111965