Tray Task allows you to remove any program from the Windows taskbar and store it under a popup menu on the TrayTask tray icon. The application is then accessed via the TrayTask right-click menu.
Why would you want this ? Sometimes you have a program running and you want to make sure other users on the compute don't close it. Or perhaps the application can't minimize to the windows tray. This is a great way to clear up toolbar clutter.
What happens if I close TrayTask while programs are hidden ? The window is automatically restored to your Windows taskbar.
No installation required, Single executable, Simple, easy, free. OS: All Windows

http://www.trvx.com/traytask/