.NET Framework 3.0

Microsoft’s .NET Framework 3.0 (formerly codenamed “WinFX”), is the new managed code programming model for Windows. It combines the power of the .NET Framework 2.0 with four new technologies: Windows Presentation Foundation (WPF), Windows Communication Foundation (WCF), Windows Workflow Foundation (WF), and Windows CardSpace™. Use the .NET Framework 3.0 to build applications that have visually compelling user experiences, seamless communication across technology boundaries, the ability to support a wide range of business processes, and an easier way to manage your personal information online.

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See more at: http://msdn2.microsoft.com/