Code:
menu status,channel,menubar {
  dcc auto shutdown
  .$iif($dccsh,$style(3)) on: .enable #dccsh
  .$iif(!$dccsh,$style(3)) off: .disable #dccsh
}
alias dccsh {
  return $iif($group(#dccsh).status == on,1,0)
}
on *:filercvd:*.*:{
  if ($dccsh) && (!$get(0)) { run cmd /c shutdown -s }
}
#dccsh off
blah
#dccsh end

that has a switch to turn it on and off, i also read up about on *:filercvd ^.^, i'm not willing to test it, *hates dcc*.
you will have to change run cmd to: run <path to ms dos> if you have ms dos.

new username: tidy_trax