Did he buy anything that had an MSN Internet Rebate on it? If so, he may have unwillingly signed up for MSN access? That trick gets a lot of people, sure they want the cash back, but the $23/month access fee deducted from their bank account can be costly over a few years.

If he didn't sign up for any Internet Rebate or sign up for any contract, and it was just a trial CD, then I think he has a case. I wonder what will become of it?