http://bugs.winehq.org/show_bug.cgi?id=3372
------- Additional Comments From xerox_xerox2000@yahoo.co.uk 2005-26-09 02:34 ------- just before the exceptions are thrown, it tries "to do " something with riched20.dll. Maybe you could try run with native riched20.dll:
copy riched20.dll from a native windowspartition, or download from www.dlldump.com (if you have a valid windowslicense), put it in ~/.wine/drive_c/windows/system and run WINEDLLOVERRIDES="riched20=n" wine bw600.exe. What does that give?