Audio Stub Driver (audstub) Service Defaults in Windows XP

AudStub Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Audio Stub Driver
Service name:audstub
Service type:kernel
Error control:normal
Path:%SystemRoot%\system32\DRIVERS\audstub.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\audstub

Default Behavior

Audio Stub Driver is a kernel device driver. In Windows XP it won't start until the current user starts it. If the Audio Stub Driver fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the audstub service has failed to start.

Restore Default Startup Configuration of Audio Stub Driver

1. Run the Command Prompt.

2. Copy the command below, paste it into the command window and press ENTER:

sc config audstub start= demand

3. Close the command window and restart the computer.

The audstub service is using the audstub.sys file that is located in the C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.