Media Player 11, Not Compatible??????

I have a problem of sorts with Media player, when i try and download the
patch from napster to run inside Media player, it says its not 9 or Higher??
Y? it worked fine in XP, with Media player 11. I found a way around it but i
dont like having napster + Media Player two seperate programs.
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Im pretty Smart with computers but I even need help sometimes. Thats why im
here.