I've been Googling around for a free host intrusion prevention system, but having a bit of trouble finding good ones... What I've got so far: - Antihook: version 2.6 supports Win2k, but is very old. Version 3 looks better but has no Win2k support. [Edit: My bad, Antihook is a 30-day trial. Scratch that one.] - Samurai: currently using, good but seems to be getting dated, and the HIPS aspect is a little limited - it didn't fair so well in recent tests according to one thread here on Wilders. - ProcessGuard: hasn't been updated in a while, and I've read bad things about DiamondCS around here. Any others out there, or is that it? Or should I just shell out the cash for Malware Defender (or WinXP for that matter)?