MemCheck Pro automatically monitors and Optimizes System Resources. Features include Optimization of lost Resources for System, User and GDI as well as Memory Load, memory types available and free such as Physical (installed memory), Virtual (swap file) and the Page File, unobtrusive display in both graphical and text, Marks the current usage and shows the gain or loss in percentage points, remembers last window position and user's choice of displays. Option to run with Windows and automatically Optimize in the background when available memory falls below user selected level or the default. (40%) Also includes a Process Viewer that shows all the running processes which are many more than Windows' Ctrl+Alt+Del Task Viewer shows and the amount of memory each uses. This will help you find out which programs are resource hogs and the opportunity to stop tasks to help prevent crashing. System resources (System) are areas of memory that are used by the Input manager (USER) and the Graphic Display Interface manager (GDI) for keeping track of all of the windows that are open in a session and for drawing objects on the screen. Each time you open a program or window it uses resources. Closing an application should release its allocated system resources, but some software is not as well behaved as it should be and this release may not happen. If the free resources fall below about 10-15%, serious problems may be encountered in Windows such as crashing or freezing.