Message Queuing (also known as MSMQ) is a messaging
infrastructure and environment for running distributed, loosely coupled, messaging applications. Message Queuing applications running on source computers send messages to queues, where they are temporarily stored, and applications running on target computers retrieve messages from queues. Such applications can communicate across heterogeneous networks and with computers that may be offline temporarily. Message Queuing is administered in several MMC snap-ins.
Message Queuing is not installed by default during
Windows Setup.
To install Message Queuing with independent client func-tionality

1. Open Add or Remove Programs in Control Panel.
2. Click Add/Remove Windows Components.
3. In the Windows
Com ponents Wizard, select the Message Queuing check box.

4. If you want to change the default set of optional subcomponents that will be installed, click Details, and then do the following.
If the computer belongs to a domain and you want it to operate in workgroup mode, clear the Active Directory Integration check box.
If you do not want to
install Message Queuing Triggers, clear the Triggers check box.

If you intend to send messages by HTTP transpot, select the MSMQ HTTP Support check box.
To open Add or Remove Programs, click Start, point to Settings, click Control Panel, and then click Add or Remove Programs.
The Active Directory Users and Computers snap-in is not available in Windows XP Home Edition.
To open Computer Management after Message Queuing has been installed, right-click My Computer, and then click Manage.
For more information about using Message Queuing, view Message Queuing Help, or click the button in either snap-in.