http://bugs.winehq.org/show_bug.cgi?id=7712
------- Additional Comments From dmitry@codeweavers.com 2007-18-03 09:32 ------- Sorry for the late ideas, but it would be interesting to see:
1. what GetClassInfo (both A/W) returns for such a class 2. whether any other user32 window proc works the same way (button, edit, menu, listbox, desktop and other control procs, DefMDIChildProc, DefDlgProc come to mind).