Kevin Trudeau, mentionined in the Coral article, is all over my TV all the time nowadays. He settled with the FTC, I believe, and can no longer sell anything but books, so, of course, he's selling books. His new one is Natural Cures They Don't Want You to Know About. I'm sure some of you have seen the infomercial.
There's just something that seems wrong to me about a guy who's selling snake oil to desperate people. Apparently, there's a cure for cancer, but the drug companies don't want you to know. I guess conspiracy theories are fun to believe, and when you are terminally ill you'll try anything, but what a sleazeball.
Click Here (ftc.gov) to read his settlement with the FTC back in September regarding the Coral Calcium. Of course, he can still sell books, which sucks, but at least he's not charging 300 dollars a bottle for basically placebos.
Perhaps it left some trace behind when it was removed. Check out the hardware section of the registry for entries regarding drives. It sounds strange enough that you might not be able to find anything online to provide a lot of help.