Describe the core elements of WPF architecture?

WPF uses a multilayered architecture: The Managed WPF API -PresentationFramework.dll: holds the top-level WPF types, including those that represent windows, panels, and other types of controls. -PresentationCore.dll: holds base types, such as UIElement and Visual, from which all shapes and controls derive. -WindowsBase.dll: holds even more basic ingredients that have the potential to be reused outside of WPF, such as DispatcherObject and DependencyObject, which introduces the plumbing for dependency properties. The Media Integration Layer -milcore.dll: is the core of the WPF rendering system and the foundation of the Media Integration Layer (MIL). -WindowsCodecs.dll: is a low-level API that provides imaging support (for example, processing, displaying, and scaling bitmaps and JPEGs). Kernel -Direct3D: is the low-level API through which all the graphics in a WPF are rendered. -User32: is used to determine what program gets what real estate. As a result, it's still involved in WPF, but it plays no part in rendering common controls.

http://www.csharptutorial.in/2012/03/wpf-architecture-overview-of-windows.html