Ok sorry it took so long I had to run to the store in this BITTER cold.
I just tested it and worked fine with Windows Media Player 11 AKA URGE. I will tell you this, I really dont like the MP11. I can tell there is just going to be to many problems with it. I will stick with Evil Player it does everything I need it to do, not to mention it uses close to no system rescourses. I can save my lists, shuffle, and do everything else I need.
Well I'm going on about nothing, back to the point. So the answer is yes Remote Wonder will work with MP11.
On a Side note not only do I use the remote for media such as watching DVD's, listening to music, but since I have my PC hooked up to my Plasma TV I use it to surf the web when my batteries are charging for my wireless keyboard. I would recommend picking one up it is well worth it IMO.