The MSMQ connector server is not available with the Windows NT® 4.0 Option Pack.
The connector application must be able to translate between MSMQ and the message queue system used by the foreign computer. It must be able to read the message properties in one system, translate their values into the format of the other system, then send the message on (with its new properties) to the appropriate destination.
When an MSMQ application sends a message to a foreign queue, the message is routed to the connector queue that represents the foreign CN where the queue's computer resides. The connector application must read the messages in the connector queue, translate them, then forward the message on to the foreign queue.
When a message is sent to MSMQ it must be routed to the connector application, translated into an MSMQ message, then forward the message on to the appropriate MSMQ queue.