In order to authenticate another user to use DVME, click on the Buy/Register button at the top of the DVME software as shown on the right.
Next, select Online Activation as shown here:
On the next screen, enter the product code provided by Discover Video to authenticate the DVME software. Once submitted, you should see a confirmation screen confirming that the product has been authenticated and ready to use.
After exiting the authentication wizard, you may need to restart the DVME software if you still see the Buy/Register button at the top of the DVME screen.
Note: When the DVME software is updated to a newer version, it will update the software for any and all users on that compputer. If you are upgrading DVME from a user account that does not have administrator privileges, however, an administrator username and password may need to be entered in order to install the new version of DVME depending on how the computer's security settings are configured.
For more detailed information on how to activate DVME, see the support article DVME Activation.