If your Macintosh crashes, it pops up and gives you a chance of recovering from the error. It lets you run many versions of software that might otherwise crash your system, when performing a particular function or used in a particular environment (e.g. System 7.0 or a favourite INIT/cdev combination). It lets you compensate from within the Control Panel for those crashes caused by the misuse of 'System Memory' - reducing the chances of crashing. And it provides the most comprehensive Auto-save capabilities of any Mac utility on the market.