SLARToolkit is a flexible Augmented Reality library for Silverlight with the aim to make real time Augmented Reality applications with Silverlight as easy and fast as possible. It can be used with the Webcam API that was introduced in Silverlight 4 or with any other CaptureSource or a WriteableBitmap. SLARTookit is based on the established NyARToolkit and ARToolkit. SLARToolkit uses a dual license model and could be used for open or closed source applications under certain conditions. See the License page for details.