Windows Presentation FoundationWindows Presentation Foundation The Windows Presentation Foundation (or WPF), formerly code named Avalon, is the graphical subsystem feature of the .NET Framework 3.0 (formerly called WinFX) and is directly related to XAML. It is pre-installed in Vista, the latest version of the Microsoft Windows operating system. WPF is also available for installation on Windows XP SP2 and Windows Server 2003. It
