Abstract: A method, program product and computer for managing computer programs in a running state on a computer operating system are described. The computer programs have at least one normal user interface representation, such as a window, for receiving input from a user and producing output to a user. Reduced representations of normal user interface representations are formed for the computer programs so that the reduced representations can be presented simultaneously on a display of the computer. A selection input is received from a user for selecting a reduced representation of a second computer program for providing a normal user interface representation of the second program to a user in response to the selection input. At least a part of the normal user interface representation of the first program simultaneously with the reduced representations, where the reduced representations are indicative of states of the computer programs.