Windows Terminalserver does not shutdown without useraction

Hello,

i would like to shutdown Windowsterminalserver. I have set these options: http://forum.proxmox.com/threads/456...5726#post25726
but this is not enough for terminalserver, because when other user logged an message is displayed what the administrator have to confirm "Another user are logged in, you really want to schutdown..."
Are local gpo's to disable this message?

Best regards
fireon