Microsoft KB Archive/222946

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BUG: Windows 98: Shutdown Hangs With WDM Audio Driver Installed

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Q222946

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The information in this article applies to:


 * Microsoft Windows 98 Driver Development Kit (DDK)

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SYMPTOMS
If a WDM audio driver is installed on Windows 98 and the system is idle for at least 2 minutes then the system hangs on shutdown. Eventually, after approximately 2 or more minutes, shutdown completes.

CAUSE
This problem is due to a bug in Windows 98. After approximately 2 minutes of idle time, Kmixer.sys, the kernel audio mixer, unloads in order to optimize system memory usage. When USER tries to play the shutdown sound the Kmixer.sys file fails to reload on account of this bug. Finally, after approximately 2 or more minutes, Kmixer.sys is reloaded and the shutdown sequence concludes.

STATUS
This is a known problem with WDM audio drivers under Windows 98.

Additional query words:

Keywords : kbmm kbDDK kbOSWin98bug

Issue type : kbbug

Technology : kbAudDeveloper kbWin98search kbWinDDKSearch kbWin98DDKSearch kbWin98DDK