Actually MS have been trying to mess with / kill off OpenGL every since they released DirectX, it wouldn't suprise me if this is just another way of messing with the more open standard in an attempt to force thier own alternative.

But MS's alternative stinks! :( OpenGL is by far more better performance wise and is much easier to program for. Even John Carmack refuses to code a game in DirectX

Personally i feel that if you continue to use M$ products you are going to have to deal and live with this.