http://bugs.winehq.org/show_bug.cgi?id=5935
--- Comment #25 from Bernhard Übelacker bernhardu@vr-web.de --- Cannot reproduce it anymore.
(with same mirc365.exe from my other comment from 2012, in none of the wineversions: 1.7.23, 1.3.36 or 1.2)
So probably some system update made it disappear.