I think i found the cause further up in the log. 178591:000f:Starting process L"c:\\windows\\system32\\ntoskrnl.exe" ... 178596:wine_dbg_vprintf: debugstr buffer overflow (contents: '000f:trace:ntoskrnl:ExAllocatePoolWithTag (0 20 ') 178597:000f:trace:seh:raise_exception code=80000101 flags=1 addr=0xffffe002 ... I will look into it some more.