(sending again, used wrong reply-to address) As far as I know, the ports on OS 9 are only open if you turn on a service or some kind, so the OS natively acts like a firewall that won't even let you ping. I haven't used 9 since 2000...I'm starting to forget! I never had a firewall on mine , and it was online on highspeed 24/7 for years, and I never got a blip of a virus/problem/hack attempt. Darcy