The source code for this walkthrough can be downloaded here . I compiled this walkthrough for MOC 6461 that I am teaching these days. It corresponds to the work convered by units 1 and 2 of the MOC and will guide you through the following steps: Define the Contracts Implement the Contracts Implement a WCF Service hosted in IIS Create a Client Application Add a Self-Hosted Console Application for the Service Modify the Client Application to use the Console Host Add a Self-Hosted Windows Service for...