If a user logs out of Windows with a local Avanti instance running, or if Windows is shutdown with one or more Avanti instances running, the Avanti instances will crash.  This is equivalent to pulling the plug on a physical Alpha system and crashing the OpenVMS or Tru64 UNIX operating system.  All of the potential problems and caveats of an OpenVMS or Tru64 UNIX hardware crash apply when Avanti is terminated in this fashion.

Avanti Warning on Windows Shutdown

Avanti blocks Windows shutdown and sign-out to avoid inadvertently crashing an Avanti instance.  If a local Avanti instance is running when a Windows user attempts to log out, or if Avanti is running anywhere when a Windows shutdown is issued, the logout/shutdown process will pause and a "The following applications block Windows shutdown" message is issued.

Warning: Terminating an Avanti instance without first shutting down the guest O/S is equivalent to pulling the plug on a legacy Alpha server.