MSMQ uses four server types to control message queuing:
Each of these servers must be installed on a computer running Windows NT Server, Enterprise Edition. The specific functions of these servers are explained in the following sections. Your MSMQ enterprise must contain one PEC. The installation of other server types is optional, depending on your network topology, the size of your MSMQ enterprise, and the types of MSMQ-based applications you develop. You can also configure Windows NT Remote Access Service (RAS) servers to support remote MSMQ independent clients. You can do this by installing one of the four MSMQ server types on the RAS server, or by installing only the MSMQ RAS Connectivity Service on the RAS server.
MSMQ Explorer uses a variety of icons to display the different types of computers. To see a table that defines the computer, queue, and message icons, click the Help button on the MSMQ toolbar and click anywhere in the MSMQ enterprise.
For more information on determining the appropriate number of MSMQ servers for your MSMQ network and their location and configuration, see Chapter 6, "Deploying MSMQ." For more information on installing the various MSMQ servers, see Chapter 2, "Installing MSMQ."
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MSMQ does not limit the number of client/server sessions. However, MSMQ does count the number of Windows NT client access licenses (CALs) and restricts concurrent MSMQ client sessions accordingly. MSMQ supports both Per Server and Per Seat licensing. For more information on CALs, see Microsoft Windows NT Server Version 4.0 Concepts and Planning, Chapter 12, "Licensing and License Manager." |