You can also find this list on my main blog - Vista compatible freeware - which is updated very often.

Audio and Video and Image

• FastStone Capture (freeware version) - Screenshot capture
• FastStone Image Viewer
• Picasa
• ImgConverter
• Firm Tools Shell Extension Converter
• Image ReSizer
• The GIMP
• Blender 2.44
• Paint.NET
• Corel Snipefire 1.2 - Image organizer, editor and viewer
• Acala Video MP3 Ripper

• Mega Sound Recorder - Sound recording
• EXPStudio Audio Editor Free - Audio editor
• Audacity
• GOM Player
• OrangeCD Player
• Ashampoo Clip Finder
• FinalBurner - Burning tool
• ImgBurn Burning tool

• DVDFlick
• Dvd Decrypter 3.5
• Dvd Shrink 3.2

  more…

Tweak,repair,delete recover,view, manage your Windows

• Advanced Windows Care (tweak, repair and fix windows errors)
• RegToy - tweak and manage xp
• TuneXP - system tuneup*****(all in one speedup)
• PCTuner 6.2.8 - pc tunning
• Optimizer XP - tweaks and speeds up slow computers
• TweakUI - computer tweaking
• X-Setup -last free version -tweaking
• Safe Xp - tweaks various security and privacy settings in XP
• Freecommander 2004 -file manager
• Cacheman- memory management
• PC Inspector File Recovery
• WinDirStat 1.1.2 disk usage statistics

  Read the rest: more…