title: Cannot add "C:\Windows\System32\shdocvw.dll" to my project
body: <p>I use VS 2010 Ultimate.</p>
  
  <p>I'm trying to add "shdocvw.dll" to my project's references by right clicking <em>References -> Add Reference...</em>, then clicking <em>Browse</em> and navigating to "C:\Windows\System32\shdocvw.dll", but when I click the <em>Add</em> button nothing happens at all. The dialog doesn't even close.</p>
  
  <p>Any idea what could I be doing wrong?</p>
  
  <p>I tried restarting VS but kept having this problem.</p>