To move messages from another message queue system to MSMQ, the connector application must use the standard MSMQ API functions. In addition, each message sent to MSMQ (including acknowlegment messages created by the connector application) must have its PROPID_M_CONNECTOR_TYPE property set so that MSMQ knows which connector sent the message.
Note For foreign message properties not supported by MSMQ, use PROPID_M_EXTENSION and PROPID_M_EXTENSION_LEN.