batcmd.com Windows 7 Services

Quality Windows Audio Video Experience - Windows 7 Service

Quality Windows Audio Video Experience (qWave) is a networking platform for Audio Video (AV) streaming applications on IP home networks. qWave enhances AV streaming performance and reliability by ensuring network quality-of-service (QoS) for AV applications. It provides mechanisms for admission control, run time monitoring and enforcement, application feedback, and traffic prioritization.

This service also exists in Windows 10, 8 and Vista.

Startup Type

Windows 7 edition without SP SP1
Starter Manual Manual
Home Basic Manual Manual
Home Premium Manual Manual
Professional Manual Manual
Ultimate Manual Manual
Enterprise Manual Manual

Default Properties

Display name:Quality Windows Audio Video Experience
Service name:QWAVE
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalServiceAndNoImpersonation
File:%windir%\system32\qwave.dll
Error control:normal
Object:NT AUTHORITY\LocalService
Privileges:
  • SeChangeNotifyPrivilege

Default Behavior

The Quality Windows Audio Video Experience service runs as NT AUTHORITY\LocalService in a shared process. It shares an executable file with other services. If the Quality Windows Audio Video Experience fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the QWAVE service has failed to start.

Dependencies

Quality Windows Audio Video Experience will not start, if the following services are stopped or disabled:

Restore Default Startup Type for Quality Windows Audio Video Experience

Automated Restore

1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestoreQualityWindowsAudioVideoExperienceWindows7.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the qwave.dll file exists in the %windir%\system32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.