[Bug 44335] Blizzard App crashes at start because of d3d11.dll

https://bugs.winehq.org/show_bug.cgi?id=44335

--- Comment #2 from abelthorne  ---
(In reply to Fabian Maurer from comment #1)
> Odd, wine does have d3d11.dll. Are you using a clean WINEPREFIX?

Yes, dedicated prefix set as Windows 7 and with corefonts + vcrun2015
installed. I also checked that d3d11.dll was in windows/system32 (tried to copy
it in windows/system too just in case but didn't change anything).

As I said, Battle.net worked perfectly fine until today, the issue appeared
after an update, so I guess Blizzard changed something in the client. Not sure
if it's related to the planned drop of support for Windows XP (they've been
anoouncing it for monthes but I don't know if it's effective since today or
completely unrelated).

Note that deleting the update ("Battle.net.9737" dir in "Program Files
(x86)/Blizzard App") allows me to start it with no issue. But then, it
downloads it again and the issue happens again.