In addition to Thunder look MMCSS will also let Win7 card

            Use Thunder to watch movies online, or users who use Thunder know that when you use MSN and other software video chat, the transmitted video will be very "card", the sound delay is more powerful. This is actually due to Thunder (look at) the network bandwidth caused by the author once in a video chat, but also online listening to the song, although did not open Thunder to see, did not use Thunder download, but Windows 7 still appeared “Slight card” When I used the exclusion method to exclude all networked programs one by one, I found that it seems that listening to songs online makes Windows 7 pause. Subsequently, the author asked some Windows 7 users, in all the feedback, I chose to use the following solution: Run the registry, expand the branch to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet \\Services\\Audiosrv, find in the right window And double-click "DependOnService", and then delete “MMCSS” in the pop-up window (as shown below). After deleting the MMCSS and modifying it, the Windows 7 card disappears after you open all the programs that were running before. Although it is "the phenomenon of the card disappears", but I can not fully affirm that the above method is "the only solution", (because Windows 7 performance is reduced, the cause of the system card is not unique) can only be regarded as this The solution "may be right". Tip: Why does the Multimedia Class Program (MMCSS) reduce the performance of Windows 7 systems? The MMCSS service runs in the service host Svchost.exe, which can automatically raise the priority of audio and video playback to prevent other software from taking up too much CPU time for the playback software. Whether it is online playback or local playback, multimedia playback requires a steady stream of media streams. When the playback requirements are not met, the system will “card”. Edit Comment: Please note that the method described in this article is actually within the scope of “discussion possibilities” rather than “should be so”. So, when you encounter a similar situation, please refer to the solution in this article. If the issue is not resolved, please restore the system default settings.