http://blogs.msdn.com/b/rruggeri/archive/2007/10/03/ordered-message-delivery-in-biztalk-2006-r2.aspxDuring the past MS-HUG TechForum Stuart hinted to an upcoming whitepaper on ordered delivery patterns on BizTalk 2006 R2. The whitepaper and associated code is now live and can be accessed from the link below: Improving Ordered Message Delivery in BizTalken-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)