If Toad is installed on another machine, go to Help > About to see the Site Message, though the full License Key may be partially masked for security.
The ghosts of old databases seemed to swirl in the monitor’s glare. He knew the drill: the License Key and Site Message were a matched pair, like a physical key and its specific tumbler. If one was from a version 13.x contract and he was trying to install 17.x, the gate would never open. toad for oracle license key and site message install