Welcome to the Windows Communication Foundation (WCF) site on Microsoft Connect! 

The Windows Communication Foundation is Microsoft's unified development platform and runtime for secure, reliable, transactional, and interoperable connected applications which ships in the .NET Framework. WCF is a service-oriented programming model which simplifies the development of connected systems by focusing on unifying a broad array of distributed systems capabilities in a composable and extensible architecture, spanning transports, security systems, messaging patterns, encodings, network topologies, and hosting models.

Through this site, you can:

• Submit suggestions and feedback for new/existing features in which the Windows Communication Foundation Product Team will evaluate for future version
• Report errors in the product, tooling and documentation that will be investigated by the Product Team
• Find out about the different resources you can use to learn about WCF
• Be aware of upcoming advancements for WCF
• Participate in the Windows Communication Foundation community

As a customer-driven organization that is passionate about giving you the tools that you need, we look forward to receiving your feedback. Any feedback, positive and negative, will help us make the product better and optimize it to suit your application scenarios.

NOTE: If you have a blocking problem with Windows Communication Foundation and are in need of immediate support, please contact our frontline support.
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What is Windows Communication Foundation?

High level functionality:

• Endpoints: Addresses, Bindings, and Contracts
• Data Transfer and Serialization
• Sessions, Instancing, and Concurrency
• Transports
• Queues and Reliable Sessions
• Transactions
• Security
• Peer-to-Peer Networking
• Metadata
• Client Architecture
• Hosting
• Partial Trust
• Interoperability and Integration
• Web Programming Model
• WCF Syndication
• AJAX Integration and JSON Support

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Where can I obtain Windows Communication Foundation?

To obtain the latest copy of Windows Communication Foundation, please download .NET Framework 3.5.

The core WCF components were shipped in .NET Framework 3.0 and you will find additional features such as Workflow Enabled Services (integration with Workflow), AJAX enabled WCF Services, new tooling for web service authoring, RSS and ATOM syndication and Partial Trust Support for WCF Hosting in .NET Framework 3.5.

As well, Windows Communication Foundation shipped on the Windows Vista platform (Vista RTM has 3.0 RTM, Vista SP1 has 3.0 SP1) and on the Windows Server 2008 platform (3.0 SP1).

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Resources:

• If you need developer support please post any questions on the Windows Communication Foundation Forum 
• Take a look at the newly updated Windows Communication Foundation Dev Center
• Reference the Windows Communication Foundation Documentation (great for all levels)
• Get your hands on the code with Windows Communication Foundation Samples
• WCF and WF blog - don't forget to bookmark it!
• Try out the WCF Hands on labs in the Visual Studio 2008 Training Kit
• Feel like reading...David Chappells collection of whitepapers on WCF (and WF)
• Sit back and relax and watch some Channel 9 videos on WCF

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As always, feel free to contribute on this Connect site, by voting and discussing important issues raised by the Windows Communication Foundation community.

Thank you for helping to improve future releases of Windows Communication Foundation.