Learn about Windows 7: Taskbar
In Windows 7, the Taskbar is the access point for programs displayed on the desktop. Users can give commands, access resources, and view program status directly from the Taskbar. Taskbar features include jump lists, thumbnails, thumbnail toolbars, overlay icons, and progress bar.
Video: Welcome to the Windows 7 Desktop (PDC, 2008)
Get Started with the Windows 7 Taskbar
Use the Taskbar in your Application