QoS Packet Scheduler.
|Windows Vista edition||without SP||SP1||SP2|
|Display name:||QoS Packet Scheduler|
QoS Packet Scheduler is a kernel mode driver. If QoS Packet Scheduler fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the PSched service has failed to start. At least one service depends on QoS Packet Scheduler. Therefore I do not recommend you to disable it.
If QoS Packet Scheduler is stopped, the Quality Windows Audio Video Experience fails to start and initialize.
1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestoreQoSPacketSchedulerWindowsVista.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
pacer.sys file exists in the
%WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows Vista installation media.