The native application is a multi-user system, currently running on Solaris with LOCK MODE IS MANUAL on all files. I am moving this to Linux/Visual COBOL as-is. The managed code project is built with the same FC/FD copybooks in the core COBOL modules.
I can't be sure the EXTERNAL attribute is relevant, except that I assume these files would be held open by the web session. They are then the first to be opened by the native application before quitting. The web app does not suffer the same effect if the native application is started first. Moreover I can open additional green screen sessions on the back of the first.
I realise the runtime error code is not defined but I'm sure it's correct and just thought it might mean something to you.
My concern is that I wouldn't be able to develop and run managed code alongside and as an extension of the green screen application. If you are saying I should not be hitting any restrictions or limitations then I can investigate further with a smaller demo.
Thank you.