http://bugs.winehq.org/show_bug.cgi?id=25305
--- Comment #7 from Tristan Schmelcher tristan_schmelcher@alumni.uwaterloo.ca 2010-11-28 01:04:03 CST --- Yup, using MapLS/MapSL to map HDDEDATA values to segmented pointers avoids the problems and prevents the error dialog!
However, the crash still happens, and the backtrace is no different than before. :(