In addition to older versions of Windows®, the new Ashampoo WinOptimizer 4 is fully compatible with Windows® Vista. This means that you can start maintaining your slick new Vista system right away - it won't even have a chance to get clogged down with new garbage! In addition to Vista compatibility, WinOptimizer 4 also comes with three new modules, a brand-new hard disk defragmenter, a huge number of new system tweaking options and many other improvements and enhancements. New Modules and Tweaking Tools: - System Benchmark: The module tests the processor and memory performance of your system and compares the aggregate result with the performance of reference systems. Check out how your computer stacks up in today's market! - Visual Styler: The Visual Styler caters to all those who are never satisfied with how their desktop looks. It enables you to replace system icons, apply transparency settings to Windows components and application windows and more. It also includes quick presets for many common applications. - Process Manager: The Process Manager is an essential tool for dealing with badly-behaved programs. It lists all the processes active on your computer, displays information on the process details and allows you to kill programs manually if necessary. - Disk Defragmenter: The completely new disk defragmenter is fully compatible with Windows® Vista and is now even faster and more efficient. - Tweaking Tools: The Tweaking Tools now offer well over 450 Windows configuration options, including customization settings for Windows logon, the Control Panel, Internet Explorer, Windows Explorer, Windows Media Player, system appearance, system settings and much more.