I don't think it's that obvious in this case. Microsoft does not have a monopoly on video or audio compression in any way - h.264 bests wmv9 easily for most forms of video, and the audio situation is even more diverse.Kryton said:Would anti-trust laws permit them to deny a license? Using your monopoly in one area (audio/video compression) to gain another (gaming) is illegal.
It's quite a different scenario from them using their OS "monopoly" in the browser wars.