经常听见有人说用🧜windows 7玩网络【wán wǎng luò】🚷游戏的时候网🌫络延时【luò yán shí】🎧比较高🦆，也就是ping比平时🐊xp的时候高一点【gāo yī diǎn】🥢，一直找【yī zhí zhǎo】不到原因【yīn】🚶，很苦恼。今天我【jīn tiān wǒ】🚌们终于找到理🧒由了【yóu le】，原来是Win7的一个服务【gè fú wù】🚔在作怪【zài zuò guài】，这个服【zhè gè fú】务【wù】🚔叫【jiào】：Multimedia Class Scheduler。

　　这个服【zhè gè fú】务【wù】🚔的官方解释是：

　　The Multimedia Class Scheduler service (MMCSS) enables 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 determine 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.

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

　　就是这个服【zhè gè fú】务【wù】🚔让我的【ràng wǒ de】🖕PING如此高🐠，问题是【wèn tí shì】找到了📏，那么我们如何解决呢？很简单【hěn jiǎn dān】，禁用【jìn yòng】🤣它就行了。

　　禁用【jìn yòng】🤣方法🥦：开始【kāi shǐ】--运行-regedit，展开🥋[HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Audiosrv]双击打【shuāng jī dǎ】开右侧【kāi yòu cè】的DependOnService项目，把MMCSS删除（千万别【qiān wàn bié】删到其他的），最后保存退出。

　　重启电脑后设置才会生效🚘，然后到服务【wù】里🛍关闭并😳禁用【jìn yòng】🤣Multimedia Class Scheduler，再进游【zài jìn yóu】戏看看有没有提高呢【tí gāo ne】。