Chameleon Window Manager 

Chameleon Window Manager is a utility that will add additional buttons to every program´s window.

These buttons, added to the left of the common window control buttons (Minimize, Maximize, Close) already present in the title bar of every window, will give you more control on the way that the program windows will be displayed in your system. You will then be able to position the windows at the left or the right of the screen, specify the transparency for the current window, configure the current window to be always on top, minimize the window in such way that only the title bar will be visible, or minimize the window to the system tray.

You can choose which buttons you will add through Chameleon Windows interface. There are several settings that you can customize to control how will each button affect the appearance of each window. You can tell the program to show just a half of the window when placing it to the right or to the left, specify the percentage of transparency that you want to apply,