This document provides an overview of Windows Communication Foundation (WCF) and Windows Server AppFabric. It discusses new features in WCF 4 that make it easier to use, such as default endpoints and configuration. It also explains what AppFabric is and how it can be used with WCF to provide a scalable and manageable solution for hosting services on Windows. The document contains examples of using Plain Old CLR Objects (POCO) with WCF and demonstrates how WCF and AppFabric can work together easily.