Okay, this issue has been fixed. It turns out that due to some foible in the way my laptop and office server synch, only one folder containing zmud.exe contained the .wiz file I was trying to access ...
I have a couple of character settings saved for Achaea. When I open a new character (which shares some inherited files, such as maps), I am not able to use the configuration wizard (ctrl-T). Ctrl-t ...