http://blogs.msdn.com/kevin_lam/archive/2006/04/25/583490.aspxMessage Box Direct Bound Ports Message box direct bound ports, as its name implies, allows you to drop messages directly into the message box without an explicit recipient and it allows you to subscribe to messages, not from any particular sender, whichen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/kevin_lam/archive/2006/04/25/583490.aspx#875739Thu, 26 Oct 2006 14:05:18 GMT91d46819-8472-40ad-a661-2c78acb4018c:875739Obiwan Jacobi<p>A nice explanation of the direct port binding flavors in BizTalk. Part 1: <a rel="nofollow" target="_new" href="http://blogs.msdn.com/kevin_lam/archive/2006/04/18/578572.aspx">http://blogs.msdn.com/kevin_lam/archive/2006/04/18/578572.aspx</a></p>