http://blogs.msdn.com/lifenglu/archive/2007/08/13/side-by-side-comparsion-between-svcutil-and-the-service-reference-in-vs.aspxThe Service Reference is new feature added into VS Orcas, so we don't have to use svcutil when using VS IDE. Here is the side by side comparsion table between svcutil and the service reference in Orcas: Svcutil command line VS service reference (.svcmap)enCommunityServer 2.1 SP1 (Build: 61025.2)