https://bugs.winehq.org/show_bug.cgi?id=42907
--- Comment #28 from ganthore ganthore@gmail.com --- I see. Is that something you think the wine project would be interested in investigating or is that just something way out of scope?
Also I have some more good news, the mod runs correctly on the more modern Steam version of Half-Life with your hack enabled.
Big thanks again for finding a way around this problem. Once upon a time, an older copy of cedega used to work just as well, so I wonder if they implemented some sort of similar hack.