How do I make iTunes my default audio player?

try going into the program acces and defaults by opening sart and it shiould be on the right if not do a search for it, then click custom and change ur default audio player to itunes, if this doesnt work Ares might have messed up ur registry u can download spybot for free and it will search ur comp and find any regristy changes that souldnt be there if that deosnt work i dont know what to tell u sorry