title: Using of System.Speech.Synthesis; System.Speech.Recognition;
body: <p>I've using of <code>System.Speech.Synthesis;</code> and  <code>System.Speech.Recognition;</code> for .NET <code>C#</code> Windows Form Application, but I can't find information, if Microsoft David, Mark, Zira Windows System Voices, can be used as Text-To-Speech and <code>System.Speech.Recognition;</code> as voice recognition tools in application for commercial, or at least scientific projects. </p>
  
  <p>I'm not looking for another TTS tools, because these tools completely satisfy the desired result, but I do not quite understand their status for using </p>
  
  <p>if you look into <strong><a href="http://go-mono.com/status/" rel="nofollow noreferrer">mono project list</a></strong> you can find there also system.speech and recognition <strong><a href="http://www.go-mono.com/status/status.aspx?reference=4.0&amp;profile=4.5&amp;assembly=System.Speech" rel="nofollow noreferrer">here</a></strong>, at the same time it is <strong><a href="https://en.wikipedia.org/wiki/Comparison_of_speech_synthesizers" rel="nofollow noreferrer">bundled with Windows</a></strong> so I'm not really understand what it means, and how this rules works</p>
  
  <p>Would be good if you can help me figure out with this information </p>