title: Get assembly version from .net class library COM visible doesn't work
body: <p>I made a class library, COM visible, in CSharp with Visual Studio 2010.
  When I try to call this method:</p>
  
  <pre><code>    public string Version {
          get { return Assembly.GetEntryAssembly().GetName().Version.ToString(); }
      }
  </code></pre>
  
  <p>from VB6 client I obtain <strong>Object reference not set to an instance of an object</strong>. Other methods works properly.
  From .NET client all works fine!</p>
  
  <p>What's wrong?
  Thanks, Luigi.</p>