https://bugs.winehq.org/show_bug.cgi?id=54878
--- Comment #11 from Joerg Schiermeier mywine@schiermeier-it.de --- (In reply to Joerg Schiermeier from comment #9)
Possible dupe of bug 54460.
(and other places) when 'Windows version' in 'winecfg' is set to 'Windows 8.1' or above. Everything is fine on 'Windows 8' (and below).
I can confirm this behaviour: WinSCP behaves exactly like in bug 54460 described:
See the attachments I just uploaded.