When downloading a fille or app, dont download a file with a size of 872,159. It is a spyware program, and has a virus. I downloaded it accidently when trying to download spybot, a free spyware remover, but i searchjed for other things and i see that a file comes up under almost every well known program with very same file size of 872,159. Watch out for this.

dont rely on file size alone. files can be compressed, made bigger, or changed totally to thwart virus scan detection.

the best rule is not to download executables on peer to peer networks. if you're in doubt, go online to the web and download the freeware/shareware/whatever from the official software site or a third party like download.com or tucows.com