Error Messages in Mmsystem.dll or Rundll32

ID: Q138835

The information in this article applies to:
  • Microsoft Windows 98
  • Microsoft Windows 95

SYMPTOMS

You may receive random general protection (GP) fault error messages in Mmsystem.dll.

You may also receive the following error message:

Rundll32 - This program has caused an illegal operation and will be shut down

This error message is more likely to occur after you use the Add New Hardware tool in Control Panel.


CAUSE

This problem can occur if the "drivers=mmsystem.dll" line is missing from the [boot] section of the System.ini file.


RESOLUTION

To correct this problem, follow these steps:

  1. Use any text editor (such as Notepad) to edit the System.ini file.


  2. Add the following line to the [boot] section of the file: 


    3. 
      drivers=mmsystem.dll
  3. Save and then close the System.ini file.


  4. Restart your computer.



MORE INFORMATION

This problem can occur when the System.ini file has been replaced with the System.cb file.

Additional query words: gpf

Keywords : kberrmsg win95 windrvr win98
Version : 95
Platform : WINDOWS
Issue type : kbprb


Last Reviewed: January 22, 1999
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