When uinstalling the Job Cal Plus program there is one important thing you need to remember. The uninstall process is going to ask if you want to remove the shared files. YOU SHOULD NEVER REMOVE SHARED FILES. Sure you can remove the shared files and the Job Cal Plus program will replace them, but it will probably install versions that are a couple of years old which can cause compatibility problems in the operating system. If you remove the shared files you might have to reinstall the latest service pack for your operating system.