Radmin is widely regarded as one of the fastest remote control programs available. Because it is optimized for LAN environments, it provides a "real-time" feel. Unlike cloud-based tools that route data through external servers, Radmin connects directly peer-to-peer. This makes it ideal for IT admins who need to fix servers or workstations instantly without lag.
If you're still having trouble or need help with obtaining a new license key, I recommend contacting Radmin's official support channels or visiting their website for more information.
Open from the tray icon or Start menu. Select Enter License to open the activation dialog. Enter your 30-character license key (including dashes).