The MSMQ adapter lets you use Microsoft Message Queuing 2.0 and Message Queuing 3.0 from BizTalk Server 2006. Integrating Message Queuing technology with BizTalk Server enables applications that are running at different times to communicate across heterogeneous networks and systems that may be temporarily offline.
The MSMQ adapter features include the following:
Support for multithreaded operations
Support for Message Queuing 3.0 features, including support for HTTP or HTTPS transports
Support for processing messages larger than 4 MB