During my quest to disable as many tray icons as I possibly can, I’ve had to track down how to disable the tray icon for Sophos Anti-Virus in a Terminal Server environment. This one is pretty easy, it’s just a single DWORD registry value:

HKEY_LOCAL_MACHINE\SOFTWARE\Sophos\AutoUpdate, HideTrayIcon, 0x00000001

To configure this in a script use the following command:

REG ADD HKLM\SOFTWARE\Sophos\AutoUpdate /v HideTrayIcon /d 0x00000001 /t REG_DWORD /f