title: Coinitialize(nil) and CoInitializeEx(0, COINIT_MULTITHREADED) difference
body: <p>in a thread, 
  is there a difference if I use </p>
  
  <pre><code>Coinitialize(nil)
  </code></pre>
  
  <p>instead of</p>
  
  <pre><code>CoInitializeEx(0, COINIT_MULTITHREADED);
  </code></pre>
  
  <p>I use Delphi 7 but I presume the question can remain for other programming languages
  Thanks for your help.</p>