.NET 3.0 Overview (WinFX)

.NET 3.0 uses the same compiler as .NET 2.0 and is a superset of .NET 2.0. There are four main sets of new classes (formerly known as WinFX during development).

• WPF - Windows Presentation Foundation (formerly Avalon): new API for Windows UIs using XAML (Extensible Application Markup Language).
• WCF - Windows Communication Foundation (formerly Indigo): API for connecting applications.
• WF - Windows Workflow Foundation: for creating applications with workflows.
• WCS - Windows CardSpace (formerly InfoCard): A digital identity solution.

Other features are:

• XML Paper Specification (XPS)
  : describes electronic paper in a way that can be read by hardware, software, and humans.
• System.Speech
  : managed speech API.