WPF is a graphical subsystem for rendering user interfaces in Windows-based applications.

WPF) is a graphical subsystem for rendering user interfaces in Windows-based applications. WPF employs XAML, a derivative of XML, to define and link various UI elements. WPF applications can be deployed as standalone desktop programs, or hosted as an embedded object in a website. Silverlight utilizes a subset of WPF to provide embedded web controls for web based and Windows Phone 7 applications.