http://developers.de/blogs/damir_dobric/archive/2011/05/10/hosting-of-wcf-service-side-by-side-with-wcf-dataservice.aspxSometimes you might host typical WCF service side by side with WCF DataService in one application. As long you use single endpoint based on some security mechanism all will for fine. For example, assume there is a service MyService which is accessed byenCommunityServer 2008 SP1 (Build: 30619.63)