plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BActiveDirectory%2B%E3%82%A2%E3%82%AB%E3%82%A6%E3%83%B3%E3%83%88%E3%81%AE%E3%83%AD%E3%83%83%E3%82%AF%E3%82%A2%E3%82%A6%E3%83%88
plugin=diff is not implemented.