Service Pack 2 blocked a file i need :<

[MLE]

how do i get to it? it was an mp3 that i had recieved through MSN messenger from a friend, and yes, i'm sure i had it. i was listening to it earlier, and then recently tried to open it again from the conversation window, and SP2 decided that the file was harmful and needed to block access from it.

my friend lives across the world and it's hard to get a hold of him, so i'd rather not wait for him to be online to send me his song again. it's not going to be on any sort of P2P search program cause he just finished mixing it down today :<

any suggestions from those of you who know SP2, so i don't have to wait to get a hold of him again?