Hi I have event sink written in c# on OnTransportSubmission event to filter inbound and outbound messages. 1. If I create thread to process each request in my application asynchronously, do I have to notify dispatcher about my asynchronous processing. How can I do that ? 2. If I do that then will it be at message level(Dipatcher applicationin this case itsanvanced queue engine) or at sink processing level. 3. How does dispatcher manages asynchronous operation for creating threads for each messages if you have more than 1000 messages coming to your server at the same time. Do I have to implement anything to filter messages asynchronously (withouth blocking other messages)