Program Line The top-most line of the Program Window is called theProgram Line. The Program Line includes the name of the program, the version number, etc., as well as a Microsoft Windows 2.0 Control Pulldown Menu Button on the left-hand side which activates a menu of Windows Control Commands. On the right hand side, Microsoft Windows 2.0 provides Minimize and Maximize Arrows. Activating the Program causes the background to become dark on this line. When the program is inactive in an open window, the background appears transparent.