Q94334: Using MS-DOS Upgrade Fdisk Program with EXTDISK.SYS

Article: Q94334
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 21-NOV-1999

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 6.0, 6.2, 6.21, 6.22 
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SUMMARY
=======

If were using COMPAQ MS-DOS version 4.0 or later before you upgraded to MS-DOS
6.0 or later, and you are using EXTDISK.SYS, you should use the COMPAQ version
of the Fdisk program. If you were using COMPAQ MS-DOS version 3.31 or earlier
before you upgraded to MS-DOS 6.0 or later, and you are using EXTDISK.SYS, you
should contact Compaq for an updated version of EXTDISK.SYS.

MORE INFORMATION
================

Some COMPAQ systems use a driver called EXTDISK.SYS to access secondary disk
drives. This driver is MS-DOS version-dependent. If you use the MS-DOS version
of Fdisk when EXTDISK.SYS is loaded, Fdisk displays incorrect drive letters for
the hard disks attached to the second controller.

WORKAROUND
==========

You can work around this problem by using the COMPAQ version of Fdisk. To
install the old version of Fdisk:

1. Delete FDISK.EXE from the DOS directory.

2. Copy FDISK.* from your COMPAQ MS-DOS disks to your DOS directory. For
  example:

     copy a:\fdisk.* c:\dos

3. Add Fdisk to the SETVER.EXE version table for your version of COMPAQ MS-DOS.
  For example:

     setver fdisk.exe 4.0

4. Restart your computer.

NOTE: You must use SETVER to tell EXTDISK.SYS that you are using a previous
version of MS-DOS. For more information, query on the following words in the
Microsoft Knowledge Base:

  " MS-DOS and SETVER and EXTDISK.SYS " (without the quotation marks)

Additional query words: 6.22 6.00 6.20 EXTDRV.SYS

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600
Version           : MS-DOS:6.0,6.2,6.21,6.22

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