Hello ,
This patch http://cvs.winehq.com/patch.py?root=/home/winehq/opt/cvs-commit&id=8366
Caused regression with chess.net application. (http://www.chess.net/cnfw/download/cnfw254.exe)
If you click on a help button it will drop a messagebox which tells that 'No browser found', it is normal. The anomality is that it is not possible to close messagebox by clicking "ok" button with a mouse. But both pressing "enter" and clicking close window icon work.
The line which produce the problem is (dlls/ole2/compobj.c)
apt->win = CreateWindowA(aptWinClass, NULL, 0, 0, 0, 0, 0, 0, 0, OLE32_hInstance, NULL);