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 How to Alter a SQL Server Database as Single User Mode and as Multi User Mode November 20, 2009 Calling a WCF WebService from a SharePoint WebPart using JavaScript January 27, 2009 A fantastic example of what Silverlight 3 can do April 16, 2009