thcrap_loader.exe hangs after quitting game under wine

Hi !
Annoying Linux user here. Wine version is 6.16 (Staging).
Sorry if I should have reported this to the wine devs instead.

Since an update a few months ago (I think ?) the thcrap_loader.exe process always stays even after the game is closed.
There is no visible window, only the process seems to hang in the background.

So far I don't think this is game related, it happens with EoSD, DDC, LoLK, even with ULiL (to try a non-TSA game).

I have found this in the output from wine:

wine: Call from 7B010F76 to unimplemented function msvcp140.dll.?_Throw_C_error@std@@YAXH@Z, aborting

So I tried installing vcrun2019, and it turns out the process does exit when using microsoft's DLLs (but this is not an ideal solution).

Here are the log files when running touhou 6, waiting for the menu, and choosing quit.
(I see no difference apart from offsets but well here they are anyway)

• when running with wine's implementation of msvcp140 (and hanging): thcrap_log.hang.txt
• when running with vcrun2019 installed, no hanging: thcrap_log.with_vcrun2019.txt

Thanks for your time, please tell me if you need more info.

Reproduce the hang under Wine 6.16 with the Wine msvcp140 implementation and compare it with the vcrun2019 run. Start with thcrap_log.hang.txt and thcrap_log.with_vcrun2019.txt, then trace the thcrap_loader.exe shutdown path around the reported msvcp140.dll call; done means the process exits after quitting without requiring Microsoft's DLLs.