http://bugs.winehq.org/show_bug.cgi?id=31724
--- Comment #16 from Nikolay Sivov bunglehead@gmail.com --- I sent a patch that fixes that:
http://www.winehq.org/pipermail/wine-patches/2014-March/131027.html
As I said 'inACADSupportDir' is not set for me, so even if OpenTextFile() was implemented it will fail cause requested patch doesn't exist.