PC Tools Drivers May Cause Windows to Stop Responding (Hang)

Last reviewed: November 23, 1994
Article ID: Q92937

The information in this article applies to:

Microsoft Windows operating system version 3.0, 3.0a, 3.1, 3.11

SYMPTOMS

After you install PC Tools for MS-DOS, your mouse and/or keyboard behave erratically in Microsoft Windows, or Windows stops responding (hangs) after the logo screen is displayed.

CAUSE

During installation, PC Tools for MS-DOS, version 7.0, 7.1, or 8.0, may make the following changes to the [boot] section of the SYSTEM.INI file:

   mouse.drv=C:\PCTOOLS\SYSTEM\COMMMOU.DRV
   keyboard.drv=C:\PCTOOLS\SYSTEM\COMMKBD.DRV
   display.drv=C:\PCTOOLS\SYSTEM\COMMDIS.DRV  (version 8.0 only)
   cpdisplay.drv=<original display driver>

NOTE: The paths to these files may vary.

The entry for <original display driver> is the driver filename for the active display drive as shown in Windows Setup.

These modifications can change mouse and/or keyboard behavior in Windows, or cause Windows to hang.

WORKAROUND

To work around these problems, deactivate (comment) the lines shown above by inserting a semicolon (;) at the beginning of each line. Then, add the following lines to the [boot] section of the SYSTEM.INI file:

   mouse.drv=MOUSE.DRV
   keyboard.drv=KEYBOARD.DRV
   display.drv=<original display driver>

These are the standard settings for the Microsoft mouse, enhanced 101- or 102-key keyboard, and current display driver. If you are using a different mouse, or keyboard, run Setup to reinstall the appropriate driver(s).

NOTE: This workaround disables the PC Tools Commute application.

PC Tools for MS-DOS is manufactured by Central Point Software, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

KBCategory: kb3rdparty kbdisplay
KBSubcategory: win30 win31
Additional reference words: 3.10 commute 8.00 8.0 PCTOOLS

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Last reviewed: November 23, 1994
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