What is the difference between WPF and Silverlight application?

Question

What is the difference between WPF and Silverlight application? Are they the same?

Answer 1

WPF is based off of the desktop CLR which is the full version of the CLR.

Silverlight is based on a much smaller and more compact CLR which provides a great experience but does not have the full breadth of CLR features. It also has a much smaller version of the BCL.