Sending and Receiving Large Messages Using the MSMQ Adapter
The MSMQ adapter default message handling depends, in part, on the size of the message. When a message is less than four megabytes (4 MB), the MSMQ adapter uses the .NET Framework Class Library. Otherwise, it uses the large message extensions in Microsoft BizTalk Server.
If your application consistently receives or sends large messages, you may have to control the amount of memory that the adapter uses. For more information about conserving memory, see Optimizing Performance of the MSMQ Adapter.
See Also
Optimizing Performance of the MSMQ Adapter
Configuring the MSMQ Adapter