Userful tools for .net development

DebugView for windows
http://technet.microsoft.com/en-us/sysinternals/bb896647

Sysinternals Process Utilities
http://technet.microsoft.com/en-us/sysinternals/bb795533

wcftestclient input array parameter trick

enter length=n in array type values

Articles of plugging-in WCF Service Instance provider for IOC and NH support

http://orand.blogspot.com/2006/10/wcf-service-dependency-injection.html
http://elegantcode.com/2008/05/18/integrating-castle-windsor-and-nhibernate-with-wcf/
http://elegantcode.com/2008/07/14/integrating-castle-windsor-and-nhibernate-with-wcf-throwing-the-wcf-facility-and-some-rhino-tools-in-the-mix/

couple fall in of creating a servicelocator

ServiceLocator and Unity – Be Careful

A Well explanation of One-to-One relationship

I think you mean a many-to-one sir