Task Switcher

What it is: Replaces the existing Alt + Tab application switching mechanism of Windows XP. It provides a thumbnail preview of windows in the task list and is compliant with the new Windows XP visual style.
How to use: (NOTE: You must log off and then log on again for the changes to take effect). Use just as you do the existing Alt + Tab mechanism by pressing the Alt key and the Tab key to activate. While holding down the Alt key, press the Tab key to cycle through running applications. To move backwards, press Shift + Alt + Tab. Release all keys when the desired application is highlighted.