Ghost-It!

GhostWin allows you to make any window slightly or completely transparent, and automatically adjusts the transparency level of windows that are being moved or sized so you can see what's underneath them ahead of time.

SmartSystemMenu extends system menu of all windows in the system. It appends next custom items to menu:

PowerMenu is a small application that some extra menu items to the windows control menu in addition to the standard "Close", "Maximize", etc options. The extra menus are: Priority, Always On Top, Transparency and Minimize To Tray.

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. Its that simple.Requirements:In order to run Glass2k you would need the following:- Windows 2000/XP with 64+ MB RAM & 400+ Mhz CPU- Visual Basic 6 runtime dlls- A fast graphic card with 8 MB or more onboard RAM will help

Moo0 WindowMenuPlus lets you have extra useful menus in every windows "system window menu". Its the menu that you can access through right-clicking on any windows title bar or taskbar button. This tool can add extra menus there such as "Keep on Top", "Transparency Adjustment", "Process Priority Adjustment", "Various Information about the Program" and so forth. Also, you can configure not to show some menus that you dont use. You can enjoy only useful menus that you want. »

xNeat is a windows enhancement utility. With the free version you can change any windows transparency, hide it, make it always on top, send it to tray, change the process/thread priority, Shuffle the taskbar etc.

TopMenu is a functionality clone of PowerMenu, but designed to be compatible with Windows 7 and 64-bit systems.