Um, isn't Microsoft's whole business based on selling an OS that supports as many different varieties of hardware as possible? Specifically, in this very space, wasn't the whole point of "Plays for Sure" that there were a multitude of hardware devices made by a multitude of venders that interoperated with the Microsoft solution?

I'm going to go ahead and call shenanigans on your post. I don't think it holds up to scrutiny.

Now if you want to make an argument about how Microsoft hid APIs in it's operating system so that its office suite or browser performed better than anyone else's, or how it bundled its browser to try to use it's OS monopoly to strangle competition in another market, you'd have a point. But it should be clear how those are vastly different circumstances that cannot meaningfully be applied to the case of media jukebox made by company "A" and random hardware media player made by company "B".