IMS Connect Length problem

[rahl1985]

We have a Swing based desktop application that communicates with a mainframe program through IMS Connect.

The total data size that is required to be sent is about 56 MB. When we try and invoke the transaction we receive an exception on the GUI front. When I checked with my IMS admin they provided the following error message from their logs.

11.02.03 STC08618 HWSP1440E INVALID LENGTH SPECIFIED IN MESSAGE PREFIX;
L=58885354, M=SDRC

My admin says that L value can be between 12 to 10,000,000 bytes which implies that the maximum total length of the message can be around 9.5 MB. Is there anyway that I can send across more than this without doing multiple transaction calls? We have no issues when the same amount of data comes down from the mainframe program through the IMS transaction. We're on IMS V 9.