https://bugs.winehq.org/show_bug.cgi?id=49933
--- Comment #1 from Rafał Mużyło galtgendo@o2.pl --- ...it's doubtful.
Did you check what IME means in this context ? Those are stubs, cause wine relies on IME of your desktop. That usually works reasonably well, barring some quirks like candidate window sometimes not showing up properly (probably depending on its style).
Please describe your problem better.
Do you mean the installer gets relegated to lowest layer of windows (always on bottom) ?