A virtual screens (virtual desktops) manager. It allows a user to organize work on several screens (desktops) and make the user to feel like having several monitors. Organizing windows on several virtual screens decrease the number of windows displayed on the screen at the same time and allows the user better orientation and faster switching amongapplications. The Taskbar is not full of buttons of all running applications but only the buttons of applications presented on the given screen are in the Taskbar. Windows can be copied/moved among screens very easily if necessary.