NeoCal for Palm OS User Guide
Uninstalling or removing NeoCal is handled by the built-in Launcher application on your handheld device. Choose the Delete menu option, select NeoCal from the list of installed applications, and tap the Delete button to completely remove the application. Your preferences will also be removed and will need to be re-entered when the application is installed again at a later time.
If you used the Windows installation program, the NeoCal files can be removed from your desktop by running the Start -> Programs -> NeoCal for Palm OS -> Uninstall program to remove all files from your desktop computer. This does not remove the software from the handheld device.