http://www.theregister.com/2007/08/29/vista_networking_degradation/The degradation is caused by a new feature known as Multimedia Class Scheduler Service (MMCSS), which has been baked in to the Vista kernel. Its mission is to automatically prioritize the playback of audio and video to prevent skipping, sputtering and other unseemly glitches. Unfortunately, it ends up fixing a problem that was largely non-existent and leaving in its place a major headache for many sysadmins.
Alguém notou o que é descrito no artigo ?

