SpellChecker for WPF and Silverlight is the WPF and Silverlight version of SpellChecker for WinForms, a mature component that provides the fastest, easiest to use, and most flexible solution to checking spelling available on the market. It uses the same engine that drives ComponentOne IntelliSpell, our add-in for Visual Studio that allows you to check spelling in your applications for mistakes in forms, web pages, and comments used to generate XML documentation.