fireBwall is a personal Windows firewall which allows for modular network access. This makes fireBwall more like a network swiss army knife than just your usual firewall.

Modules can be developed in any language supporting .NET 2.0. We have many modules already built in, so new users can see the potential of what we can do. In case you didn't notice, fireBwall is a free firewall, and in our opinion, could be the best firewall. Microsoft Windows Security could be on par with some of the more hardened *nixes.

Downloadable Modules are also available.

fireBwall is freeware. However, if you enjoy using fireBwall and would like to help support its development, please consider making a donation.

Changelog:This version has a complete architecture change(a ton of work went into that, basically rebuilt from the ground up). You will need to remove all your old configuration files. We also added a ton of languages, reworked the GUI. Made more configuration options, made it run lighter and easier to move configurations.
* New Architecture
* Changed to .NET 4.0
* XML Configuration Files instead of binary
* New banner from Digip(designer of Back|Track logo
* GUI is lighter and more reliable
* Modules can use IP Lists to share lists of IPs between modules
* Added command line parameters

Limitations: Requires Microsoft .Net Framework 2.0+ installed.