Test-Run is designed to protect your computer from the hazards of testing new software. It creates a copy of your Registry to use for testing purposes. Double-clicking the Switch icon toggles between the test Registry and the real one. The test Registry displays special wallpaper, so you won t confuse which Registry is which. After testing, switch back, and all registry values are restored. Test-Run is easy to use and gives ultimate protection to your Registry. Excellent documentation is included.