'Icolorfolder', and 'Active Virus Shield'

Icolorfolder

Customize the color of each Windows XP folder. Some cool features, mainly: skin selector, customization of the "generic" folder icon, ability to use any icon to customize a folder. Two new skins included in the package, Longhorn and Snow.E2.

http://icolorfolder.sourceforge.net/

Active Virus Shield

Advanced detection technology to help stop known and new viruses, spyware and other malware before they attack you. Always-on, automatically checks for updates every hour- providing real-time scanning and protection against virus threats.

http://www.activevirusshield.com/antivirus/freeav/index.adp