Mark,
I found another piece of the puzzle.? There is a flag in the CMS NUCON area called the "Compiler Switch" -- either ON or OFF.? The CMS assembler macro to set it on or off is called COMPSWT, documented in the VM/SP CMS Macros and Functions Reference manual.? When the COMPSWT is ON, executing an OS LINK, LOAD, ATTACH or XCTL will look for a CMS MODULE by that name, rather than searching in a TXTLIB or LOADLIB (as it does when the COMPSWT is OFF).? ?This behavior is documented in this manual:
? ??
The WMSASM front-end set this compiler switch to "ON".? ?That is why the use of GENDIRT and the DMSFST macros, in the CMS version of ASMG.
Hope that helps,
Mark S. Waterbury