PktFilter is a software that can configure the IP filtering device driver found in Windows 2000/XP/Server 2003, with filtering rules following a syntax similar to IP Filter
a suite for man in the middle attacks on LAN. It features sniffing of live connections, content filtering on the fly and many other interesting tricks.
a platform for people seriously interested in anti-virus research, network security and computer security to communicate with each other, to develop solutions for various security problems, and to develop new security technologies.
combines Comodo's sturdy firewall and state-of-the-art antivirus protection in one suite. Defends your PC against 1 billion executables including viruses, root kits, Trojans, and zero-day attacks. And even with all these great features, CIS is free. Users are also asked to install the Comodo SafeSearch and Ask.com toolbars, so be careful.