Kerio Personal Firewall (KPF) helps control how your computer exchanges data with other computers on the Internet or local network

iSafer is a useful, free (gpl) Windows software, being part of the category Security software with subcategory Firewalls (more specifically Firewalls)

HackerSmacker is a personal firewall that keeps your personal data private and safe from Internet hackers and data thieves

Filseclab is a free program only available for Windows, that belongs to the category Security software with subcategory Firewalls (more specifically Firewalls) and has been created by Filseclab

Emsa Port Blocker is a TCP blocking utility

Outpost’s Network Activity Monitor watches every connection between your computer and the Internet, alerting you immediately to any communications that may be unauthorized so you can take appropriate action

Windows Firewall Control is an amazing, free Windows program, that belongs to the category Security software with subcategory Firewalls (more specifically Firewalls) and has been created by BiniSoft

Windows Firewall Console is a lightweight and straight-forward piece of software aimed to serve as an interface for your Firewall, enabling you to decide which are the utilities that can run safely on your system

VPN Proxy Master Windows is well-known security and privacy companion that aids you best in hiding your IP address

Kerio Personal Firewall (KPF) helps control how your computer exchanges data with other computers on the Internet or local network

Simple Port Tester Portable is a handy, free program only available for Windows, being part of the category Security software with subcategory Firewalls (more specifically Port Scanners) and has been created by Pcwintech

NeT Firewall is a handy, trial version Windows program, that belongs to the category Security software with subcategory Firewalls (more specifically Firewalls)