On starting Security Explorer, and error occurs:
The following error was encountered while checking the software registration: Interface not registered (Exception from HRESULT: 0x80040155)
Corrupted license key information in the registry.
Open the Control Panel on the server where Security Explorer is installed and 'Repair' the installation, then reapply the license key for the application. If the original .lic file issued for Security Explorer is not available, contact Licensing Assistance to have the license key re-sent via email.