http://bugs.winehq.org/show_bug.cgi?id=20979
--- Comment #1 from Vincent Povirk madewokherd@gmail.com 2011-05-10 01:10:07 CDT --- Notepad now starts, but it's the 32-bit notepad, even in a 64-bit prefix and even if I use the wine script from the 64-bit build tree. But it seems either one can load the 64-bit winetest.exe.
So IMHO this is still a little "broken".