Firewalls

Firewall blocker app: Quickly block any applications from accessing the Internet with firewall.

Whitelist connection software: Harden and control the firewall built into Windows with ease, without annoyance.

Firewall application that can block peer-to-peer connections, governments, corporations like Microsoft and other known IP addresses from publicly available lists.

Comodo antivirus app: Award-winning Comodo Firewall and Antivirus protection for PCs. Free for life.

Registry protection program: An excellent freeware firewall with keylogger and spyware protection.

An entry-level firewall solution.

Intruder blocker program: Interesting security utility that detects and blocks intruders on WiFi networks with notifications and exclusion lists.

A collection of tools for Internet security including a firewall, antivirus, anti-spyware and filtering.

Firewall notifier software: Provides real-time notification of Windows firewall behavior.

Spyware protection program: All-in-one security software kit that protects users from online malicious activity including keyloggers, phishing and trojan horses.

Gateway filter app: A very simple firewall-like application that provides filtering for Internet surfing on a LAN or WiFi network with support for HTTP, DNS and instant messaging protocols.