A modeless window is a window that allows the user to switch between windows--usually application windows--without having to close the current window. The current window application continues to run in the background even after you switch to another window. An application might also use several modeless windows to give the user access to different program functions and to provide separate views of program data. The user activates a modeless window using the host's method--usually by clicking on it. Modeless windows can contain most any type of control and are typically moveable and resizeable. An application's main application window is usually a modeless window.