Upon opening, WinZip Mac Optimizer displays a Dashboard view ( Figure A). You can easily change the program's other settings using the program's icon, which lands on the Menu Bar. Once installed, the application runs in the background, by default this comes in handy, especially if you wish to leverage WinZip Mac Optimizer's disk monitoring and alerting features, which, while customizable, remind you when disk space and Trash and Downloads folder sizes become problematic. SEE: Ebook-Boost your Mac productivity with these 10 techniques (free PDF) (TechRepublic)
Note: Only the registered version includes the program's logs cleanup, disk usage, uninstaller, junk file cleaner, startup items assistant, and default applications manager features I think those are the features that justify the purchase. A free version is available, if you wish to kick the tires.
