The purpose of the ebXML message wrapper is to provide a secure, flexible transport for exchanging HL7 messages and other content, and potentially other message formats, between message handling interfaces or ebXML Message Service Handlers (ebXML MSH). This document describes a specific implementation of the ebXML Message Service Standard as described in "Oasis ebXML Messaging Services Version 3.0: Part 1, Core Features, Committee Specification 02, 12 July 2007" (ebXML Specification).