The OpenEdge Hive

I've been using PDF include for many years but have recently tried to deploy it running under an appServer agent. I've isolated the problem to the pdf_load_external procedure. A symptom of the problem is that when this code is run:

/* If we can put the data into a Character Field then do so.
Then change any Xobject references within the external file. This is
due to duplication of Object names when using multiple external PDF
files */

ASSIGN iFileSize = GET-SIZE(mFile)
iPointer = 1
iMemSize = 10000.