is it possible then to disable windows media player from these keys? when itunes is open you are able to use the button but the play/pause launches windows media player. can that part at least be undone?
I don't know if this works with iTunes, but the mp3 player I use (QMP) allows hotkeys. What I did was use SharpKeys (http://www.randyrants.com/sharpkeys/) to assign the Play/Pause touch button to an unknown key, then assigned that unknown key to play/pause in QMP. No more Media Player popping up, and it works like a charm.