深度剖析.NET之*.config
http://www.codeproject.com/Articles/16466/Unraveling-the-Mysteries-of-NET-Configuration
http://www.codeproject.com/Articles/16724/Decoding-the-Mysteries-of-NET-Configuration
http://www.codeproject.com/Articles/19675/Cracking-the-Mysteries-of-NET-Configuration