title: FileLoadException with .NET 4
body: <p>I'm trying to build an application using the OpenNURBS toolkit <a href="http://opennurbs.org" rel="nofollow noreferrer">(see here)</a> and I'm getting a FileLoadException with the following message while debugging:</p>
  
  <blockquote>
    <p>Mixed mode assembly is built against
    version 'v2.0.50727' of the runtime
    and cannot be loaded in the 4.0
    runtime without additional
    configuration information.</p>
  </blockquote>
  
  <p>The OpenNURBS toolkit is the only non-System assembly in the project at this point, so I know the problem is with that file. Where and what are these supposed configuration options? Any help would be appreciated.</p>