I've just seen that this thread has grown very long meanwhile. So I apologize that I could not read it in all details. However, I understood that you worked 5 years on an MMOG project that wasn't successful, and you want to communicate that the reason was our engine, resp. some missing features. The main problems that I could extract from your posts were:

- You've heard that the Directplay network library is slow or unreliable, and want another library.
- You want the server to send entity updates only to a subset of clients in its zone.
- You got error messages in your game.
- People told you that you can't do a MMOG with Gamestudio.

Is that a correct summary of your main problems so far?

Please correct me if I'm wrong. Otherwise I'll think about how we can help in your case, and will post an answer in the next days. We take such a problem seriously.