Mike's solution seems to work fine and is simple in comparison to yours, Ton. However, I'd like to be able to follow both. I tried the project window, but the results were to say the least a mystery. (Attached summary, error messages and screen shots).
I have a folder C:\Jobs\mech\experiment\exps\iron rev4\ in which the source code top level VI "iron client master.vi" resides with its dependencies either in the same folder or subfolders. One of the subfolders is "build" where I wanted the LLB to appear.
The build module seems to expect a "lvlib" module that doesn't exist. When I create it, there is no change to the error messages. Maybe if you could point me to some coherent documentation, something more comprehensive and clearly explained than the cryptic help files that mean everything when you know what it is talking about, it might help.
Thanks to both for your prompt responses.
James T