I don’t use wine on Fedora, so I don’t know exactly, but I would assume that you just need to install the 32 bit versions of whatever libraries your Win program needs (via the .i686 suffix) & then run it from 64bit wine via the usual WINEARCH= etc. route. I’d expect that installing the 32bit wine package should pull in most of the 32bit libraries you need, even if you don’t use the executable. But again, I don’t really know, sorry.