shell command

'hibernate
System.Diagnostics.Process.Start("ShutDown", "/h")

'restart
System.Diagnostics.Process.Start("ShutDown", "/r")

   ''Shell ("Shutdown -r -t 5")

        ' Switches:
        '   -l  Log off profile
        '   -s  Shut down computer
        '   -r  Restart computer
        '   -f  Force applications to close
        '   -t  Set a timeout for shutdown
        '   -m \\computer name (Shutdown remote computer)
        '   -i  Show the Shutdown GUI