But he can't tell you where this setting is?
When you download a virus, you obviously don't know that it is a virus, or you wouldn't have downloaded it. After you download it, it can replicate and create new files (or alter files that are already on your computer).
Spammers would love to be able to upload a virus into your computer. Then they would be able to reduce the number of Limewire users that are downloading. Their ultimate goal is to get more people to BUY music/movies instead of downloading for free.
Hope this helps
Dan