No matter how inspiring the desktop wallpaper, the Windows taskbar sits at the bottom of the screen, dour and gray. Transbar harnesses the Alpha Transparency feature in Windows 2000 and XP to let you tweak the transparency level of your taskbar. You can make the taskbar completely see-through, letting it blend with your desktop. 
From the author's site <http://go.to/aksoftware>
Transbar is a little tweaking tool which takes advantage of Alpha Transparency in Windows 2000 and Windows XP. Using TransBar, you can adjust the transparency level of your taskbar meaning that a full screen background image is made completely visible.

