title: Visual Studio extensibility (add-in): How to access Silverlight-related properties?
body: <p>This is the question that has been posted to MSDN forums some time ago, and stayed unanswered to this day:</p>
  
  <p><a href="http://social.msdn.microsoft.com/Forums/en-US/vsx/thread/676b13d4-acfc-4252-b102-5fc0553e4b81/" rel="nofollow noreferrer">http://social.msdn.microsoft.com/Forums/en-US/vsx/thread/676b13d4-acfc-4252-b102-5fc0553e4b81/</a></p>
  
  <p>The property I'm interested in is ProjOutputReferences, stored in the Visual Studio solution (.sln) file.</p>
  
  <p>In Visual Studio, this property is accessible through Property Pages dialog of a Silverlight WebSite project (requires that you have Silverlight Tools for VS2008 installed). There, there is a page called "Silverlight Applications" on which the content of the above mentioned property can be edited.</p>
  
  <p>I need to access it programmatically inside my add-in, through VS automation or low-level interface(s).</p>