title: WPF .NET 4.0 as-you-type spell check control?
body: <p>I am looking for a WPF spell checking control (similar to the in-built functionality but with support for more dictionaries).  I need it to have the as-you-type functionality (red underlining).  It should also support more than 4 languages than the in-built .NET 4.0 spell check (e.g. English, Spanish, German, Italian and Russian language support would be great).</p>
  
  <p>I prefer the control have a MIT or BSD license that can be used within a commercial Windows application.  Source code would be great as I would like to integrate the spelling suggestions into my custom right click context menu.</p>