A window station contains a clipboard, an atom table, and one or more desktop objects. Each window station object is a securable object. When a window station is created, it is associated with the calling process and assigned to the current session.
The interactive window station, Winsta0, is the only window station that can display a user interface or receive user input. It is assigned to the logon session of the interactive user, and contains the keyboard, mouse, and display device. All other window stations are noninteractive, which means they cannot display a user interface or receive user input.
When a user logs on to a Terminal Services-enabled computer, a session is started for the user. Each session is associated with its own interactive window station. For more information, see Terminal Services Sessions.