http://weblogs.asp.net/jan/archive/2004/12/17/323723.aspx[Via Patrick , no not that Patrick :-)] Over here you can read a sample chapter of the long awaited BizTalk Server 2004 book "Microsoft Biztalk Server 2004 Unleashed", about designing XSD schema's with the schema editor. Messaging is the foundation ofenCommunityServer 2007 SP1 (Build: 20510.895)