Visual studio simplifies creating of WCF service by providing project templates. First way to create WCF service is to use the New Web Site option and then choose WCF Service. It will create a new web site with a sample WCF service implementation linked to a .svc file, with related configuration in the web.config file. In this approach Visual Studio does not just create the core WCF project and add the needed assembly references, but it also builds the host application.