Hello.
We will talk about this function: https://docs.microsoft.com/ru-ru/window ... ilslotinfo
The GetMailSlotInfo function with an empty MailSlot buffer should return in the parameter lpNextSize value MAILSLOT_NO_MESSAGE((DWORD)-1), istead of this it return 0 (ZERO).
I apologize for reporting a bug here, as I am not a very experienced user of both Linux and Wine yet.
linux Mint 20.2 Uma
Wine 5.0