https://bugs.winehq.org/show_bug.cgi?id=42554
--- Comment #2 from Zebediah Figura z.figura12@gmail.com --- The location of the crash is because call16_handler() attempts to inject a call to DPMI_PendingEventCheck(). It modifies the cs:ip and stack of the CONTEXT structure in order to do so, expecting that the function will continue execution—but it doesn't.
I don't know how to correctly fix this.
In any case, if that code is removed, the actual location of the crash is at 12bf:16b3, and the offending instruction is "lesw %es:(%bx),%bx"