Windows Audio Endpoint Builder (AudioEndpointBuilder) Service Defaults in Windows 7

Manages audio devices for the Windows Audio service. If this service is stopped, audio devices and effects will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Default Settings

Startup type: Automatic
Display name:Windows Audio Endpoint Builder
Service name:AudioEndpointBuilder
Service type:share
Error control:normal
Path:%SystemRoot%\System32\svchost.exe -k LocalSystemNetworkRestricted
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AudioEndpointBuilder
  • SeChangeNotifyPrivilege

Default Behavior

Windows Audio Endpoint Builder is a Win32 service. In Windows 7 it is starting automatically on the operating system startup. Then the Windows Audio Endpoint Builder service is running as LocalSystem in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If Windows Audio Endpoint Builder fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the AudioEndpointBuilder service is not running because of the error.


Windows Audio Endpoint Builder is unable to start, if the Plug and Play service is stopped or disabled.

If Windows Audio Endpoint Builder is stopped, the Windows Audio service fails to start and initialize.

Restore Default Startup Configuration of Windows Audio Endpoint Builder

Before you begin doing this, make sure that all the services on which Windows Audio Endpoint Builder depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

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

sc config AudioEndpointBuilder start= auto
sc start AudioEndpointBuilder

3. Close the command window and restart the computer.

The AudioEndpointBuilder service is using the Audiosrv.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.