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MessageQueue.MaximumQueueSize Property

Gets or sets the maximum size of the queue.

[Visual Basic]
Public Property MaximumQueueSize As Long
public long MaximumQueueSize {get; set;}
public: __property __int64 get_MaximumQueueSize();
public: __property void set_MaximumQueueSize(__int64);
public function get MaximumQueueSize() : long;
public function set MaximumQueueSize(long);

Property Value

The maximum size, in kilobytes, of the queue. The Message Queuing default specifies that no limit exists.


Exception Type Condition
ArgumentException The maximum queue size contains a negative value.
MessageQueueException An error occurred when accessing a Message Queuing API.


The MaximumQueueSize provides access to the Message Queuing message storage limit, which is separate from the computer's message quota that the administrator defines. For more information on the message quota, see MaximumJournalSize.

Setting this property modifies the Message Queuing queue. Therefore, any other MessageQueue instances are affected by the change

If an attempt is made to exceed either the maximum queue size or the computer message quota, messages might be lost. When the queue quota is reached, Message Queuing notifies the administration queue of the sending application to indicate that the queue is full, by returning a negative acknowledgment message. Message Queuing continues to send negative acknowledgments until the total size of the messages in the queue drops below the limit.

The following table shows whether this property is available in various Workgroup modes.

Workgroup Mode Available
Local computer Yes
Local computer + direct format name Yes
Remote computer No
Remote computer + direct format name No


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

MessageQueue Class | MessageQueue Members | System.Messaging Namespace | MaximumJournalSize | InfiniteQueueSize