The updates are free of charge and you need to install them over your current program. On the other hand, if you want to upgrade the application, you need to uninstall your current version and to install the new one. Also, you need to know that there is a fee for any upgrade of the software. The latest version of the application is Ability Office 6.0 and its price is around 33 dollars. If you want to completely uninstall the old version from your computer, you can try Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.