Function WMapDrive($sLetter, $sPath)
  $result=MapDrive($sLetter,$sPath)
  If ($result = 0)
     ? "Drive $sLetter mapped to $sPath"
  Else
     ? "Drive $sLetter failed to map to $sPath(Error:" + $result + ")"
  EndIf
  $WMapDrive = $result
EndFunction

$Result = MapDrive(blah..)
If @ERROR
  'Mapdrive: ' @SERROR ?
EndIf