Heavyload is inteded to stress all resources of a PC (like CPU, RAM, harddisk, network, operating system, etc.) in order to test, if it will run reliable under heavy load. This is useful for testing important NT file o r database servers before using them productively, or just to check if your new PC might get too hot when used intensively. To stress your PC or server, HeavyLoad writes a large test-file to the temp folder, it allocates physical and virtual memory and i t draws patterns in its window.