Hi Daniel,
I'd recommend that you use SDL Hercules 4.5 or 4.6; the TCPNJE driver is already in those releases and is stable.? I've been using NJE with SDL Hercules for since 2018.? The problem with Hercules 4.0 is that it is not maintained and is quite out of date.
VM/370 RSCS with Mr. Coghlan's modifications for NJE work perfectly in the SDL Hercules environment, so there is no need to regress back to Hercules 3.x unless you just want to.? I can likely help you with getting RSCS running if you have the modifications.
Regards,
Bob
