QoS Packet Scheduler - Windows XP Service
QoS Packet Scheduler.
This service also exists in Windows 10, 11, 7, 8 and Vista.
Startup Type
| Windows XP edition | without SP | SP1 | SP2 | SP3 |
|---|---|---|---|---|
| Home | Manual | Manual | Manual | Manual |
| Professional | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | QoS Packet Scheduler |
| Service name: | PSched |
| Type: | kernel |
| Path: | %WinDir%\system32\DRIVERS\psched.sys |
| Error control: | normal |
| Group: | PNP_TDI |
Default Behavior
The QoS Packet Scheduler service is a kernel driver. If the QoS Packet Scheduler fails to load or initialize, the error is recorded into the Event Log. Windows XP startup should proceed, but a message box is displayed informing you that the PSched service has failed to start.
Dependencies
QoS Packet Scheduler will not start, if the Generic Packet Classifier service is stopped or disabled.
Restore Default Startup Type of QoS Packet Scheduler
Automated Restore
1. Select your Windows XP edition and Service Pack, and then click on the Download button below.
2. Save the RestoreQoSPacketSchedulerWindowsXP.bat file to any folder on your hard drive.
3. Run the downloaded batch file.
4. Restart the computer to save changes.
Note. Make sure that the psched.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows XP installation media.