Microsoft KB Archive/266067

= INFO: Behavior of MSMQ 2.0 Messages in a Mixed MSMQ Environment =

Article ID: 266067

Article Last Modified on 2/23/2007

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APPLIES TO


 * Microsoft Message Queue Server 1.0
 * Microsoft Message Queuing 2.0

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This article was previously published under Q266067



SUMMARY
Microsoft Message Queuing (MSMQ) 2.0 adds several new properties to the MSMQMessage object. These properties are transparent to MSMQ 1.0 hosts, and do not affect MSMQ 1.0 computers.



MORE INFORMATION
The format of MSMQ messages is designed to be extensible, and all changes to the MSMQMessage object are backward compatible.

MSMQ 1.0 computers, including Routing Servers, do not interfere with the new properties. An MSMQ 1.0 client can read and access all MSMQ 1.0 properties, even if the sender is MSMQ 2.0. The new properties cannot be read by an MSMQ 1.0 receiver, but they are transparent to the receiving computer, or to an intermediate Routing Server.

