From author's site:

Spyware, adware, browser hijackers, and dialers are some of the fastest-growing threats on the Internet today.
By simply browsing to a web page, you could find your computer to be the brand-new host of one of these unwanted fiends! The most important step you can take is to secure your system. And SpywareBlaster is the most powerful protection program available.

# Prevent the installation of ActiveX-based spyware, adware, browser hijackers, dialers, and other potentially unwanted software.
# Block spyware/tracking cookies in Internet Explorer and Mozilla/Firefox.
# Restrict the actions of potentially unwanted sites in Internet Explorer.

Spyware protection from AVG . Resident Protection. Automatic Update feature, Easy-To-Use Interface. AVG Anti-Spyware Free is only available for single computer use for home and non commercial use.

From author's site:

vira AntiVir PersonalEdition Classic reliably protects your private computer against dangerous viruses, worms, Trojans and costly dialers.

More than 30 million users worldwide trust in the reliable protection of Avira AntiVir. And this is no coincidence at all: Avira has gained several awards. The product combines first-class detection rates and ease of use with a top performance that protects your computer safely and hardly burdens older PCs.

From author's site:

avast! 4 Home Edition is a complete antivirus solution, fully able to find computer viruses, to create and check the integrity of programs installed, to test executed programs and opened documents, to test and check email and other functions. Scanning is also available in the shell extension and screen server.

The latest version of avast! antivirus kernel features outstanding detection abilities, together with high performance. You can expect 100% detection of In-the-Wild viruses (viruses already spreading between users) and excellent detection of Trojan horses.

The kernel is certified by ICSA; and frequently takes part in the tests of Virus Bulletin magazine, often yielding the VB100 award.

From author's site:

Spybot - Search & Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies.

If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been "hijacked" (or changed without your knowledge), your computer is most probably infected with spyware.

A Growing Collection of High-Quality, Super-Small and Super-Fast, Freely Downloadable Programs & Resources. Personal firewall leakage tester. ID Serve- This utility helps you to easily determine which Internet servers web sites are using. SocketLock- Disable WinXP and 2000 raw sockets...

Excellent antivirus program. Auto updates. Resident Protection, Email Scanner, On-Demand Scanner, Basic Scheduled Tests, Free Virus Database Updates, Automatic Update feature, Easy-To-Use Interface, Automatic Healing of infected files, AVG Virus Vault for safe handling of infected files, No Technical Support. Add 'virus-free' confirmation notices to incoming and outgoing email!