Tiny Personal Firewall, based on WinRoute Pro security technology, is a very simple yet powerful personal firewall.
There are different ranges of protection for those of you who don't want a fortress. The interface is simple to manage and shouldn't give anyone a problem.
This version is free for home use, so those of you with cable modem or a DSL connection have no reason not to get a little protection. With MD5 sig and password support, you never have to doubt your safety.