How to use freeme2 or fairuse4wm or any other lossless methods?

Hi everybody I am trying to remove drm from my zune subscription music using freeme2. I have been using Tunebite and it is a good program, however I want to try lossless drm removal programs. I have downloaded freeme2 but I do not know how to use it. Whenever I try to drag a file onto freeme2 it says "No enabling bits in licsense." Can anyone explain to me how to use freeme2? Thank you.