title: How to step into MVC4 source code without building assembly
body: <p>Is there an easy way to step through the MVC 4 source from within my solution?</p>
  
  <p>I found this <a href="https://stackoverflow.com/questions/1914226/how-to-step-into-system-web-mvc">question</a> but the solution requires building the MVC 4 assembly from source. I would think a symbol look up from a server would be preferable but have not been able to make this happen.</p>
  
  <p>Ideas?</p>