http://bugs.winehq.org/show_bug.cgi?id=12617
--- Comment #2 from Yuriy Kozlov yuriy.kozlov@gmail.com 2008-04-16 18:59:47 --- This isn't about default settings. This is about being able to manually* set winebrowser to launch something with arguments.
*with regedit, or with some configuration module or script. I ran into this when trying to create a default browser setting for wineconfig (a KDE configuration module for wine).