https://bugs.winehq.org/show_bug.cgi?id=56486
--- Comment #5 from PeterG peter.g.anderson@live.co.uk ---
(In reply to wschmrdr from comment #4)
Your fix doesn't work; the same issue happens. Clearly not a duplicate.
Can you list the folders present under the Program Files (x86)/Battle.net/ folder in the WINEPREFIX please?
The most recent one I have after installing battle.net is called Battle.net.14766.