DriveSpace Does Not Compress Existing Drive

 Last reviewed: September 13, 1995
Article ID: Q128767
The information in this article applies to:
  • Microsoft Windows 95

SYMPTOMS

When you are using DriveSpace to compress an existing drive, the mini- Windows portion of DriveSpace does not load.

CAUSE

This problem can occur if you are using a Diamond SpeedStar Pro VLB video adapter, and the following line has been removed from the AUTOEXEC.BAT file: 

   C:\UTIL1\SPEED\PROMODE MONITOR
This line is needed in order for the video adapter to support VGA mode in mini-Windows.

RESOLUTION

To correct the problem, follow these steps:

  1. Add PROMODE.EXE to the [FAILSAFE] section of the DRVSPACE.INF file.

  2. Copy the PROMODE.EXE file to the fail-safe directory on the host drive.

  3. Add a line in the AUTOEXEC.BAT file to load PROMODE.EXE and then restart the computer.

MORE INFORMATION

Some older Diamond video adapters need the PROMODE.EXE driver for VGA support. When you try to compress an existing drive, the computer restarts and cannot load mini-Windows and no compression takes place. There is no support for computers that load required drivers from the AUTOEXEC.BAT file.

The third-party products discussed here are manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

KBCategory: kbdisplay
KBSubcategory: wpp95 win95 diskmem
Additional reference words: 95 compress in place

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: September 13, 1995
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.