title: Where can I find System.ComponentModel.Composition.Initialization.dll?
body: <p>I just started using Caliburn.Micro, and it says to import the</p>
  
  <pre><code>System.ComponentModel.Composition.Initialization
  </code></pre>
  
  <p>in</p>
  
  <pre><code>System.ComponentModel.Composition.Initialization.dll
  </code></pre>
  
  <p>but i can't find the assembly in the .NET assembly reference explorer!</p>
  
  <p>Can you help me please? Thanks!!</p>