Managing queue properties

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Managing queue properties

The Computer Management snap-in or the Active Directory Users and Computers snap-in is used to administer queues. For more information, see Administration overview.

Messages are sent to public queues based on the sum of each message's priority value and the destination queue's priority, or base priority, value. Messages with the highest numerical total are sent first. Messages are sent first by base priority, and then by message priority. Private queues do not support base priority, so messages are sent only according to message priority.

For information on how to change the base priority for a queue, see Change the base priority of queues.

The queue type ID specifies the type of service provided by the queue. The queue type ID must be a valid GUID in the form {dddddddd-dddd-dddd-dddd-dddddddddddd}, where d is a hexadecimal text digit. It can be used to search for queues of a specific type. After you have located queues by type ID, you can use the name retrieved to open or delete the queue. The use of the queue type ID is optional.

For information on how to change the queue type ID, see Change queue type IDs.

Each queue can have a label, which is a string with a maximum length of 124 Unicode characters that can be used to identify the queue. For example, queues that accept messages sent by a specific application may all have the label "Messages from my application." For information on how to change the queue label, see Change queue labels.

You can specify whether a queue accepts encrypted messages, unencrypted messages, or both by selecting the privacy level for the queue. If the queue privacy level is set to None, the queue accepts only unencrypted messages. If the queue privacy level is set to Body, the queue accepts only encrypted messages. If the queue privacy level is set to Optional, the queue accepts both unencrypted and encrypted messages. You can check whether a message sent to the queue was encrypted or unencrypted by using Active Directory Users and Computers (or programmatically by checking the PROPID_M_PRIV_LEVEL message property).

For information on how to set the privacy level for a queue, see Change the privacy level for queues.

You can also specify whether a queue accepts only authenticated messages. For more information on how to set this option, see Allow only authenticated messages on queues. For general information on message encryption, see Encryption for Message Queuing.