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Definition: WCF


(Windows Communication Foundation) The messaging subsystem in Windows, starting with Vista. Introduced in the .NET Framework 3.0 programming interface (API), WCF provides a service-oriented architecture (SOA) for passing messages between applications locally, across a local network and over the Internet.

A Unified Interface
Using the SOAP protocol, WCF attempts to consolidate all functions that pass messages between applications, including .NET Remoting interprocess communication (IPC), COM and Web services. See .NET Framework, WPF, WWF, SOAP, COM and IPC.