supports executing the VBoxSVC in Windows session 0. This allows VBoxSVC to run like a regular Windows service, which in turn enables headless VMs to continue running even if the user logs out.

This is currently an experimental feature.

The feature is disabled by default and can be enabled by creating a REG_DWORD value ServerSession0 in the key HKEY_LOCAL_MACHINE\Software\Oracle\VirtualBox\VBoxSDS of the Windows registry. Specify 1 as the value's data to enable the feature, or 0 to disable the feature. A host reboot is needed in order to make the change effective.