Gets or sets additional, application-specific information.
Assembly: System.Messaging (in System.Messaging.dll)
The message queue is filtered to ignore the property.
The property contains application-specific information that you can use to organize different types of messages. For example, you can use application-specific indexes. It is the responsibility of the application to interpret property information.
Whenever possible, you should include message data in the body of the message rather than the property.
When working with foreign queues, use the Extension property to specify message properties that do not exist in Message Queuing. As with the property, it is the responsibility of the application to understand the content of the Extension property.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.