Solve the high reason and method of online game PING under Win7

I often hear people say that when using Windows 7 to play online games, the network delay is relatively high, that is, the ping is higher than the usual xp, and the reason has been found, which is very distressing. Today we finally found a reason. It turns out that a service of Win7 is at fault. This service is called: Multimedia Class Scheduler. The official explanation for this service is:

The Multimedia Class Scheduler service (MMCSS) Enable multimedia applications to ensure that their time-sensitive PRocessing receives prioritized Access to CPU resources. This service enables multimedia applications to utilize as much of the CPU as possible without denying CPU resources to lower-priority applications.

MMCSS Uses information stored in the registry to identify supported tasks and determines the relative priority of threads performing these tasks. Each thread that is performing work related to a particular task calls the AvSetMmMaxThreadCharacteristics or AvSetMmThreadCharacteristics function to inform MMCSS that it is working on that task. Br>

For an example of a program that uses MMCSS, see Exclusive-Mode Streams

This service makes my PING so high, the problem is found, then we How to solve it? Very simple, just disable it.

Disable Method: Start--Run-regedit, expand [HKEY_LOCAL_MacHINE/SYSTEM/CurrentControlSet/Services/AudiOSrv] Double-click to open the DependOnService project on the right, delete MMCSS (do not delete it to others), save .

The settings will take effect after restarting the computer, then close and disable the Multimedia Class Scheduler in the service, and then enter the game to see if there is any improvement?