Shads, I understand your sense of adventure but you are a network admins nightmare. It's all fine and dandy to play with suspicious files on a standalone machine where there is no data being risked but if I found out an enduser was randomly opening files on a network I supported I'd have a fit and I would stop them by whatever means necessary.

Again, I understand wanting to understand viruses/trojans/worms etc I'm just advocating doing it sanely if nothing more but for the sake of the admins sanity.