http://www.cnblogs.com/cp800614/archive/2009/05/29/1491551.html
http://www.cnblogs.com/leoo2sk/archive/2009/05/29/1491526.html
http://msdn.microsoft.com/en-us/vstudio/aa700828.aspx
http://searchwindevelopment.techtarget.com/generic/0,295582,sid8_gci1186287,00.html