title: SpeechSynthesizer doesn't get all installed voices
body: <p>I have installed a new 32 bits Scansoft voice (Jennifer) in my Windows 7 64 bits OS in order to be able to use from in one .NET application i'm developing.</p>
  
  <p>The problem is that I when I call the method :</p>
  
  <pre><code>   List&lt;string&gt; allInstalledVoices = new SpeechSynthesizer().GetInstalledVoices();
  </code></pre>
  
  <p>I only get one voice returned, the default Microsoft Anna Voice. but I can see all the installed voices in other text to speech application.</p>