Still Having Deletion Problems, Please Help!

I've posted a few times under Windows Support and gotten a few responses. None of them have worked, so I'm asking for help here. I have Windows XP and I can't delete my limeshop or limewire folders. I've already used the remove programs thing, and I've tried deleting the folders tons of times, but my computor keeps saying that the folders are being used by another program. I cannot for the life of me find the program that they are being used by. It's driving me insane. Please help! I've already received tips to restart the computor and use scan disk. I've done both of these and nothing is working!