Advice needed for response to customer

[ash]

I've got a message on my answering service from someone who wants to "get a copy" of an XP cd so that he can solve his own problems. He seems to think he knows what to do...if only he had a cd. Just wants to borrow it, etc.

I haven't gotten a call like this yet and am wondering what to tell him ("no") in a way that I still might get his business. I mean, that's what I do, right? I wouldn't just give someone else my tools in order to fix their problems...but I don't want to tell him that.