Hans Leidekker (@hans) commented about dlls/wbemprox/builtin.c:
rec->manufacturer = get_bios_manufacturer( buf, len ); rec->name = L"Default System BIOS"; rec->releasedate = get_bios_releasedate( buf, len );
- rec->serialnumber = get_bios_serialnumber( buf, len );
- rec->serialnumber = L"Serial number";
You also need to remove COL_FLAG_DYNAMIC from the column definition otherwise free() will be called on a static string.