AFAIK in the 'good ole days' there were two versions of OS/VS1 downloadable from Hercules users.
Both originated from Rudolfo Cozzi, Rio de la Plata University. The first had DLIBs and other kinds of wonders, including variuos programming languages and a working CICS.
But it was 'tainted' by BPE extension; so it was soon replaced by a light versions without DLIBs CICS and other goodies.
Just a few lucky pople could get the first version; I know 'very' well one of them who generated a 3380 version (the original was on 3375 DASDs), and played with CICS. Now that guy likes better playing with more modern OS, for example z/OS 2.4.;-)
Regards
