Ad-Aware 2008 Free is available for personal home
Ad-Aware provides protection from known Spyware including: Data-mining, aggressive advertising, Parasites, Scumware, selected traditional Trojans, Dialers, Malware, Browser hijackers, and tracking components.
With the release of Ad-Aware SE Personal edition, Lavasoft takes the fight against Spyware to the next level.
With Lavasoft’s all new Code Sequence Identification (CSI) technology, you will not only be protected from known content, but will also have advanced protection against many of their unknown variants. To further protect you, Ad-Aware SE Personal Edition also has the capability to scan …

LimeWire is a free peer-to-peer file sharing (P2P) client

AVG AntiVirus Free – antivirus and internet security software for the Microsoft Windows, Linux, and FreeBSD computing platforms

This is a collection of Alternative software than can replace some commercial applications. Please note than some free or open source application may not completely replace the commercial ones. but there are some who can outperform even the commercial ones.

Linux is a clone of the operating system Unix

FreeBSD is an advanced operating system

Spybot Search and Destroy – free antivirus, spyware, malware removal

Google Chrome is a free web browser developed by Google.

Opera is a web browser and Internet suite developed by the Opera Software company.