Microsoft Kernel Wave Audio Mixer (kmixer) Service Defaults in Windows XP

Kernel Mode Audio Mixer by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:Microsoft Kernel Wave Audio Mixer
Service name:kmixer
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\kmixer

Default Behavior

Microsoft Kernel Wave Audio Mixer is a kernel device driver. In Windows XP it won't start until the current user starts it. If the Microsoft Kernel Wave Audio Mixer 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 kmixer service has failed to start.

Restore Default Startup Configuration of Microsoft Kernel Wave Audio Mixer

1. Run the Command Prompt.

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

sc config kmixer start= demand

3. Close the command window and restart the computer.

The kmixer service is using the kmixer.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.