Deleting License Keys
You will need to delete a license key if you evaluated ePublisher but are now updating your license key to a purchased version of ePublisher. To use your purchased license keys, you must delete any evaluation license keys you installed previously. You may also need to delete a license key if you have an old license key that is no longer valid.
To delete a license key
On the Help menu, click License Keys.
Select the license key you want to delete.
Click Delete Key.
Click OK to close the License Key window.