https://bugs.winehq.org/show_bug.cgi?id=57540
--- Comment #5 from Rafał Mużyło galtgendo@o2.pl --- In a random order:
The installer in the example is for a VN from DLsite.
Most games on dlsite have demos. Again, I'm asking for at least one example where ja_JP.utf8 doesn't work, cause right now I'm expecting this to be a system configuration problem.
Wikipedia says that's an extended variant of Shift_JIS though?
What's named in that dir (and in a few other places) as Shift_JIS and CP932 *mostly* match, but the keyword is 'mostly'.
and Ghidra was only able to find relevant strings
Well, duh. If it wasn't a Unicode app, then as a Japanese Windows app it most likely *was* using CP932 (pretty much had to - while historically some Japanese apps (mostly mail clients) might have used a different encoding on the output, internally CP932 was pretty much obligatory) and (as above) those *mostly* match.
To clarify, I'm still trying to get the game installed, as apparently `LC_ALL`, `TZ`, japanese system time and keyboard layout still aren't enough to avoid region lock errors.
A Japanese IME, sure, if text input is required; keyboard layout not so much. Japanese time/date format, possible, but that's covered by LC_TIME (so overridden by LC_ALL); timezone not so much (potentially possible in extreme cornercases (some online multiplayer games) but very unlikely).