I had lime wire on a back up pc with vista. a room mate who was supposedly just using it to check football stats wasn't doing that. I found some really disturbing and sick websites under the internet history. When confronted he says it was lime wire and that he started to down load some music and came back to it with "200" pop ups of these websites.

Now there is no way lime wire can mess with the internet history like showing different websites visited and such?