I have been trying to get it work under Wine 4.0 on Manjaro. Launcher throws the error "libgluezilla not found" every time. Gluezilla isn't in the repositories of my distribution. Client.exe crashes with an unhandled exception (both of them). I've tried in a separate wineprefix, also with IE6, directx9 and Flash enabled according to some very old entries at
https://appdb.winehq.org/objectManager.php?sClass=application&iId=6900 to no avail.
I guess it's one of those that just don't work with wine. Just run it in a VM like NULL said, it'll probably be less hassle.