Firewall

TDI Personal Firewall

Simple TDI-Based Open Source Personal Firewall for Windows NT4/2000/XP/2003.

DeleGate

DeleGate is a multi-purpose application level gateway, or a proxy server which runs on multiple platforms (Unix, Windows, MacOS X and OS/2).

PktFilter

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.

WIPFW

WIPFW is a MS Windows operable version of IPFW for FreeBSD OS.

iSafer

iSafer is a Firewall which runs in the socket layer.

Misspellings: fi5ewall, fi4ewall, furewall, fieewall, firewalll, firswall, fir3wall, fireaall, virewall, cirewall, firesall, firewalp, fire3all, fierwall, fireqall, fiewall, firewaol, fire2all, firwall, firewzll, ifrewall, fidewall, f9rewall, ffirewall, firewsll, firrwall, fireeall, direwall, girewall, rirewall, firewakl, firewlal, fiirewall, firewaall, firewapl, firrewall, firewall, fitewall, firewalll, f8rewall, firewalk, firdwall, irewall, fifewall, fireawll, firewwall, forewall, fkrewall, tirewall, fjrewall