A

acknowledgment message

Indicates whether the message reached the queue or was retrieved from the queue. The type of acknowledgment is generated by MSMQ, MSMQ Connector applications, or computers outside the MSMQ system.

Active Directory

The Microsoft directory service feature included with Microsoft Windows NT Server 5.0. MSMQ uses Active Directory to store, organize, and make available information about public queues, certificates, computers, and so on.

AddressSpecification

The address specification of a computer. It can be specified using two forms: either as the network address of the target machine (including the network protocol) or as any string that is supported by the underlying operating system to identify the target machine.

As a shortcut, the operating system can be used to indicate that the computer's native protocol should be used.

administration queue

A queue created and maintained by the application. It receives MSMQ-generated acknowledgment messages that indicate if a message reaches a queue, or if the message is retrieved from the queue.

application input queue

An application input queue is created by the MSMQ application that needs to read MSMQ mail formatted messages. When the application creates the queue, the queue's label must be set to the address of the MAPI application, and the queue's type must be set to the following MAPI type identifier:

{5EADC0D0-7182-11CF-A8FF-0020AFB8FB50}

When a MAPI form is sent to an MSMQ application, the MSMQ MAPI Transport Provider locates the application's input queue by the queue's label and type. If the MAPI Transport Provider cannot find the queue with the correct label and type, the form is rejected and a non-delivery report is generated.

application object

Object whose methods provide global functionality. Unlike most application objects, the MSMQ application object does not start a new instance of MSMQ.

audit

Queue operations can be audited by modifying the system access control list (SACL) of the queue's security descriptor. For a complete description of auditing, see the Microsoft Message Queue Server Administrator's Guide.