If your intent is to claim that this is evidence bigcorps aren't still fighting against piracy, I don't think that's true. Corporations are amoral, and it's naive to expect that they have a consistent ethical stance which they apply to themselves.

That is to say, Microsoft can be pirating everything they can get their hands on while at the same time trying to prevent anyone from pirating their intellectual property. They don't care that that's hypocritical; it's profitable and that's what matters to corporations.