Copies of CONFIG.SYS or AUTOEXEC.BAT Files on Compressed Drive (109497)


The information in this article applies to:

  • Microsoft MS-DOS operating system 6.2
This article was previously published under Q109497

SYMPTOMS

If you try to upgrade to MS-DOS while running AddStor's SuperStor, you may receive the following error message:
Error: Setup cannot install MS-DOS on you computer. The copy of the CONFIG.SYS or AUTOEXEC.BAT file on your compressed drive does not match the corresponding file on your uncompressed drive.

CAUSE

SuperStor maintains two copies of the CONFIG.SYS and AUTOEXEC.BAT files: one on the compressed drive and the other on the uncompressed drive. If the copies of these files on both drives are not identical, you receive the above message.

RESOLUTION

In most cases, the copies of the CONFIG.SYS and AUTOEXEC.BAT files on the compressed drive are more current than the ones on the uncompressed drive. To verify this, do the following:

  1. Change to the MS-DOS command prompt on the uncompressed drive (usually this is the drive D). For example, type d: at the MS-DOS command prompt and then press ENTER.
  2. Change to the root directory of the uncompressed drive. For example, type cd\ at the MS-DOS command prompt and then press ENTER.
  3. Check the file dates of the CONFIG.SYS and AUTOEXEC.BAT file. To do this, type the following at the MS-DOS command prompt and press ENTER after each line:

    dir config.sys
    dir autoexec.bat

    Write down the date and time for both files.
  4. Change to the MS-DOS command prompt on the compressed drive (typically drive C). For example, type c: at the MS-DOS command prompt and then press ENTER.
  5. Check the file dates of the CONFIG.SYS and AUTOEXEC.BAT file. To do this, type the following at the MS-DOS command prompt and press ENTER after each line:

    dir config.sys
    dir autoexec.bat

    Write down the date and time for both files, then follow the appropriate procedure below.
If the compressed drive (C) has more current versions of the CONFIG.SYS and AUTOEXEC.BAT files:

  1. Delete the CONFIG.SYS and AUTOEXEC.BAT files from the uncompressed drive (D) by typing the following at the MS-DOS command prompt and pressing ENTER after each line:

    del d:\config.sys
    del d:\autoexec.bat

  2. Copy the CONFIG.SYS and AUTOEXEC.BAT files from the compressed drive (C) to the uncompressed drive (D) by typing the following at the MS-DOS command prompt and pressing ENTER after each line:

    copy c:\config.sys d:\config.sys
    copy c:\autoexec.bat d:\autoexec.bat

  3. Run MS-DOS 6.2 Setup again.
If the uncompressed drive (D) has more current versions of the CONFIG.SYS and AUTOEXEC.BAT files:

  1. Delete the CONFIG.SYS and AUTOEXEC.BAT files from the compressed drive (C) by typing the following at the MS-DOS command prompt and pressing ENTER after each line:

    del c:\config.sys
    del c:\autoexec.bat

  2. Copy the CONFIG.SYS and AUTOEXEC.BAT files from the uncompressed drive (D) to the compressed drive (C) by typing the following at the MS-DOS command prompt and pressing ENTER after each line:

    copy d:\config.sys c:\config.sys
    copy d:\autoexec.bat c:\autoexec.bat

  3. Run MS-DOS 6.2 Setup again.

MORE INFORMATION

SuperStor is a disk compression utility program similar to Stacker.

The SuperStor and Stacker products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.
Modification Type:MajorLast Reviewed:11/22/1999
Keywords:KB109497
©2002 Microsoft Corporation. All rights reserved.