Thoosje Quick XP Optimizer 2.0 This optimizer allows you to optimize Windows XP in an simple, effective and secure way. After installing Thoosje Quick XP Optimizer your OS System runs faster, applications will load quicker and run smoother, plus browsing of your files

Windows Vista Tweaker 2.0 Vista Tweaker is the first 100% free professional tool to Tweak and Optimize Windows Vista! A Powertool with great features and over 60 tweaks that you can individually apply to tweak and optimize Windows Vista, without the knowledge of the registry.