There are no limitations associated with IMAGE data. Execution on the HP e3000 is recommended. This could be considered a requirement, except that there are third-party software products (such as OMNIDEX by DISC) that allow your program to run on Windows and access IMAGE data files on the HP e3000. The Graphical Working Storage Section of AcuBench can import existing COPY files which describe the buffers and variables used to make intrinsic calls.