OpenOffice.org 3.0.1The Free and Open Productivity Suite
An alternate to licensed MS Office
ArmorSurfPrivate Browser & Downloader
Features:Flash Downloader!Download and keep Flash videos from almost any website, including YouTube, Break, TMZ, CNN, and more!
Save to iPod & Burn Video DVDsSave movies to your iPod or mobile device. Create DVDs and watch them on your TV. Even works with Flash videos.
Private ExperienceKeep your browsing activities and files safe from unwanted eyes. Password protection, panic mode, secret installation, IP masking, and more.
Guaranteed 100% CleanNo Spyware. No Adware. No Malware.
DVD FlickFeatures * Burn near any video file to DVD
* Support for over 45 file formats
* Support for over 60 video codecs
* Support for over 40 audio codecs
* Easily add a menu
* Add your own subtitles
* Easy to use interface
* Burn your project to disc after encoding
* Completely free without any adware, spyware or limitations
For Windows XP users, you might want to consider checking this site of Microsoft intended for providing useful tools for the OS
Microsoft PowerToys for Windows XP