A method and system for managing overlapping windows on a computer screen of a computer system. A hook filter intercepts an event that has occurred. An association of the hook filter with the event was established prior to the occurrence of the event. The event is characterized by an overlapping condition in which a floating window partially or totally overlaps an active window on the computer screen. A software application is associated with the active window. Response to intercepting the event, the hook filter detects the overlapping condition. Response to detecting the overlapping condition, the hook filter eliminates the overlapping condition to make the active window totally visible.