title: How do I add a reference to an assembly that wasn't built with the Silverlight Runtime?
body: <p>I am looking for a possible solution where I can add ShapeMap.dll as a reference, 
  but when I try to add the reference I get an error stating: </p>
  
  <blockquote>
    <p>You can't add reference to ShapeMap.dll, as it was not build against the Silverlight runtime. Silverlight projects will only work with Silverlight Assemblies"</p>
  </blockquote>
  
  <p>What do I do now?</p>