https://bugs.winehq.org/show_bug.cgi?id=41459
--- Comment #5 from Artem S. Tashkinov aros@gmx.com --- (In reply to Jia Yuan Lo from comment #4)
The 32bit 7zFM.exe (16.04 and 17.01) in a 32bit/64bit prefix still reports "The system cannot allocate the required amount of memory" when opening Z: drive, last time I checked with Wine 2.16...
Is this really Fedora specific problem? The maintainer claimed it's vanilla Wine Staging on the Fedora repo...
Please retest in newer Wine releases. This bug must have been fixed ages ago.