IMHO, to be able to use a p2p and not totally destroy your computer you need to really know what you're doing from the time you download and install the p2p to actually downloading files from it, you jneed to be aware of what you're bringing in, and what to definitely avoid... and you have to remove any spyware that came with that program... among other things.. Alot of people claim Kazaa ruined their computer... I've been using it for 2 or 3 years now and I've never got a virus from it, and I rarely find spyware on my computer.. Its a common sense thing more than anything..