I tried the new version of your test from http://www.coopcacec.com.py/webcacec/dbcoop/ and confirm that it works in Windows but not in Wine. I also verified that doing wget http://kegel.com/wine/winetricks sh winetricks vcrun6 and setting msvcrt to native worked around the problem. Is that good enough for you for now? This is .http://bugs.winehq.org/show_bug.cgi?id=1789 and has been open for over four years. The fact that a second powerbuilder user has run into it raises its profile a bit.