Check out this article for a good walkthrough http://blogs.msdn.com/gzunino/archive/2007/09/17/hosting-a-wcf-service-in-windows-sharepoint-services-v3-0.aspx Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window You Might Also Like DataBinding XML in SilverLight v2 January 23, 2009 A starting point for Sharepoint and SilverLight February 4, 2009 Leveraging ILMerge to simplify deployment and your users experience December 13, 2010