Editor: Glass2k is a small little program that allows Windows 2000/XP users to make any window transparent. Right-click on any window or press the Keyboard Shortcuts (Control + Shift + [0-9]) to make any window transparent. It's that simple.
The new stable beta version remembers each window's transparency settings, allows you to keep any window on top, loads on Windows startup etc.
And with this latest version, you can easily make the windows taskbar transparent.
How to use Glass2k ?
Control + Shift + 9 : Least transparency
Control + Shift + 8 : A little more transparency
Control + Shift + . : ...
Control + Shift + . : ...
Control + Shift + 2 : Very high transparency
Control + Shift + 1 : Maximum transparency
Control + Shift + 0 : No transparency / Solid