Hello Tom,
AFAIK the Z:\ symlink is not be hardcoded and can be changed via winecfg, so this doesn't look right to me. Just try to remove the symlink and open wine cmd in a folder outside your wineprefix, it looks something like "unix\home\fabian\Programming\Wine"
Also, "wine-dev explorer ." does not work when cmd is open in drive_c, it opens Z: instead.
I'm not much of a Windows user so was unaware of the possibility to use a "window path", how are they formatted?
That's the paths with backslashes in them, like ".\windows/system32". Or alternatively something like "\?\C:" (Which doesn't seem to work either, but not related to this issue)
You probably want to create a few tests if possible, and then work from there. That's what I'd try, at least.
Regards, Fabian Maurer