title: How do I reset Visual Studio so that it once again searches for source files of DLLs while debugging?
body: <p>In the process of debugging my <a href="http://en.wikipedia.org/wiki/Windows_Presentation_Foundation" rel="nofollow noreferrer">WPF</a> project, I regularly encounter thrown exceptions. When these exceptions fire, if the exception is thrown by my application's code, I am able to browse the source code. All is well.</p>
  
  <p>HOWEVER, if an exception is thrown by code hosted in another assembly (that we built), I am unable to browse for the source code. I was at some point in the past prompted to browse for the original source code file, but "canceled" the dialog. Now, I want a do-over.</p>
  
  <p>Is there a way to grant me a do-over on locating these source files? I'm no longer prompted for them. I assume Visual Studio stores my source code browsing preferences somewhere, but I don't know where. I get the idea this do-over is possible, but I don't even know the words to search for on Google to get what I want.</p>
  
  <p>What should I do?</p>