plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BPHP%2BLinux%E3%81%8B%E3%82%89Window%E3%81%B8%E7%A7%BB%E6%A4%8D%E3%81%99%E3%82%8B%E9%9A%9B%E3%81%AERewrite
plugin=diff is not implemented.