http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece7631046893b4c4380143fd3d1027fa3c215cc791a161427bee727200702d1c67c631cff1701bfed773464457be686cf824cddb8942c2f8825367b19854b11d018acc94725dc34d507a9f916a5ecaa67c4e8c5d2af000e8a44040adfa3cd1c5742dd6e80456ca4fadf1f554811caa9633bb80e6029ee6116ec50f89025697396f7ad071087798e3a4780ae45a73966a212d449486217&p=9c759a4fce8152e80ebe9b795a&user=baidu&fm=sc&query=PdhGetFormattedCounterValue+PDH_INVALID_DATA&qid=a3ec3cd1141f96f8&p1=9
http://wenku.baidu.com/view/b738a6a9d1f34693daef3edc.html
http://blog.csdn.net/lltaoyy/article/details/5822743
http://www.feiesoft.com/iis/iis0112.html