http://bugs.winehq.org/show_bug.cgi?id=11437
--- Comment #3 from Dmitry Timoshkov dmitry@codeweavers.com 2008-02-02 06:52:31 --- Besides to what Vitaliy said, Wine builtin explorer.exe does some essential things like desktop window and resolution change managing, hal support, without which some fundamental features in Wine would break.
Explorer extenders should be replaced by features of native desktop environment.