If you are prompted for a license key in a professional environment: Remote PC through VPN Access - Comodo
Regarding your specific request for "license key 393," this likely refers to Comodo Unite version 3.0.0.393 , which was a specific build of the software. License Key Status Free for Personal Use: comodo unite license key 393
To ensure I provide the most helpful and accurate information, could you please clarify which of the following you are looking for? Software Status If you are prompted for a license key