Shutdown...

C:\windows\rundll.exe user.exe,exitwindows
C:\windows\rundll32.exe shell32.dll,SHExitWindowsEx 5

Restart...

C:\windows\rundll.exe user.exe,exitwindowsexec
C:\windows\rundll32.exe shell32.dll,SHExitWindowsEx 2

Logoff...

C:\windows\rundll32.exe shell32.dll,SHExitWindowsEx
C:\windows\system32\logoff.exe


REM Placing 1 at the end of the call SHExitWindowsEx will
REM require that some ATX systems be unpluged and repluged
REM from the wall socket before they will power up again.