Jetico

Jetico Personal Firewall protects your computer from hackers, viruses, trojan programs, other external and internal threats to your computer and your data. Three levels of protection are included: low-level network packets filtering, application-level network events filtering and filtering of user-level process activity. With JPF you may check every packet that comes in or out of your computer and specify what programms are allowed to run.

We do not have a download link yet, but you can find it using Google.