While you can use the Undo button to undo a single registry entry changed in your current session, or the Undo All button to undo all changed registry entries back to how they were before your current session, the Settings Editor also provides you with the Reset Product button. This takes the place of the old ClearWAIKeys.exe utility that used to be installed with PC-DMIS; it deletes all of the PC-DMIS related registry entries from the registry and reloads the registry entries with their default factory values. It also deletes your system and user data files and uses the factory default data files instead.
You should only reset the product if you know how to re-configure PC-DMIS. Before you use this button, be sure to first create a backup by using the Backup button.