Talking about HobX11 - Is there a way to properly install the version packaged with eCS on ArcaOS?
It is possible, but it requires manual work. I didn't need an ecs directory, but I did need some other prerequisites.
You can perform the basic installation from CD 3, but that's not enough.
You have to copy two .ini files from an eCS 1.1 system with HOBX11 installed into the OS2 directory: ecsreg.ini and ecsreg11.ini. Additionally, you apparently also have to export the registry entry from the os2.ini file in eCS to ArcaOS.
Without the two .ini files and the registry entry in os2.ini, the program won't start. The installer seems to create the entry in os2.ini, but I've always overwritten it with the entry from eCS. Perhaps that's not even necessary; I haven't tested it.
This is only permissible if you originally purchased eCS 1.1 legitimately. The license is valid for eCS 1.1. Whether mixing and matching is allowed is a rather difficult and presumably complex legal question. At the time, it was judged quite differently, as far as I recall. I took a pragmatic approach and, as a regular purchaser of eCS 1.1 and ArcaOS, considered the combination acceptable, basing my decision on OEM licenses for Windows and its software.
But back to the installation. In my experience, I was unable to directly install HOBX11, which is available on Hobbes, for example; I did not purchase it separately but via eCS.
The installation method using CD3 was the only way that worked for me. CD3 also contains bug fixes that should be applied.
I originally got these steps from a forum discussion a long time ago.
And the DLL SECURIT2.DLL is also required (it belongs in the HOBX11 directory).
I recently reinstalled ArcaOS and in doing so installed HOBX11 on the system.
I think HOBX11 is a topic all its own, including the question of whether buyers can implement the described mix without worry.