Make all windows but the active one transparent.
Features:
- User defined transparency level.
- Can ignore always ontop windows.
- Won't make parent windows transparent while children is active.

The Wonderful Icon is described as 'Small Windows utility that resides in your PC's taskbar tray. With it, you can:' and is an app. There are more than 10 alternatives to The Wonderful Icon for a variety of platforms, including Windows, Linux, PortableApps.com, Ubuntu and Debian apps. The best The Wonderful Icon alternative is RBTray, which is both free and Open Source. Other great apps like The Wonderful Icon are KDocker, 4t Tray Minimizer, KDE Mover-Sizer and DM2.
Make all windows but the active one transparent.
Features:



Define zones that autosize windows dropped on them.
Features:

Stalonetray is a stand-alone system tray (notification area) for X Window System/X11. Working with virtually any EWMH-compliant window manager, it has minimal build and run-time dependencies (X11 lib only). Complete XEMBED support under development.


DeskAngel is an enhancement tool for Windows desktop. It is simple, portable and totally free. It contains following features:
Aero Shake is a new feature for windows 7. It allows you to minimize and restore the windows that are open in your desktop. This awesome and practical trick allows you to focus in the windows that you have chosen.

WinMover is an application for moving windows more comfortable with the the mouse in Microsoft Windows®. It is fully customizable and can mimic the behaviour of many window managers for UNIX and Linux.

Make Windows in caption bar size and recover again. Version 1.5 available. Version 1.1 download is compromised.

Small utility that maximizes user's windows over the entire virtual screen area (that is, all monitors). It registers configurable hotkeys and runs in the traybar.

SilentRun is a small and handy Windows system software tool that can easily let you run multiple programs silently in the background. It can hide program windows and interfaces, and increase or decrease the priority of background processes.

MinimizeToTrayTool is a utility that allows the user to minimize any application to the Windows system tray with its icon.
Automatically control how to display a window.
Features:
