You make it sound as if the "law" is easy. Everyone can have their own interpretation of the law, and often those interpretations are complete opposite. That's

You make it sound as if the "law" is easy. Everyone can have their own interpretation of the law, and often those interpretations are complete opposite. That's why we have two sides in a court of law. Microsoft's lawyers likely decided that the move is "worth the risk". But they wouldn't be able to be 100% sure that it's either legal or illegal anyway. You can only be 100% sure after someone challenges you in Court, and then judges decide a certain way.