The com.MediaSeal.EVSDecryptorTray.plist file needs to be loaded. This is usually done during the installation process, however sometimes due to system permissions, the feature may not persist. To load please follow the instructions below:
launchctl unload /Library/LaunchAgents/com.MediaSeal.EVSDecryptorTray.plist
2. Then type in:
launchctl load /Library/LaunchAgents/com.MediaSeal.EVSDecryptorTray.plist