> Beware that GenLib is only available in its kernel-based form starting from 1.00
A fact.
> (the AMS native form was already badly supported for a long time).
A fact (the loader overhead, for example). And IIRC, there's something else (calling convention ?) in the Genlib header which makes Genlib in AMS native mode less efficient.
Note that the nostub version of Genlib 1.00 is not avalaible because there is NO USER who asks for it. So I think it is useless to spend my time trying to port the loader for nostub version. Also note that it is less efficient due to lazyness (once again if I spent more time for something who nobody cares - even myself).