It doesn't seem to be in a dll. The pertinent part of the error seems to be this here: Code: wine: Call from 0x7b844fb0 to unimplemented function ntoskrnl.exe.KeInitializeMutex, aborting wine: Unimplemented function ntoskrnl.exe.KeInitializeMutex called at address 0x7b844fb0 (thread 0014), starting debugger... Unhandled exception: unimplemented function ntoskrnl.exe.KeInitializeMutex called in 32-bit code (0x7b845026). The rest of it is a series of dumps and explanations that are foreign to a guy with only a year of high school programming under his belt.