Trash not deleting Windows Media Player...

I have tried to delete the windows media player app several times and the only way i can do it is to do a force empty trash through OnyX.

Yet, this only works if i am deleting the app of of my pbook Hd. If i try to delete it off of my ipod of external HD, it brings up an error messgae saying , "file is locked, and can not be deleted".

Has anyone found a way of deleting these files, or had similar problems?

Thanks,
-AAA