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The Windows key can also generally be used under different operating systems. Under Unix and Unix-like operating systems it is often used as the Meta key or Compose key.
Desktop environments such as KDE and GNOME for GNU/Linux support it, though it may be necessary to configure its functionalities after installation. Free operating systems often refer to the key as "Meta" or "Super".
In Compiz, a popular window manager for modern Linux systems, the super key is used in conjunction with the scroll wheel to zoom in or out of any part of the desktop.