[Bug 22428] New: World of Warcraft Battle Chest dvd-install fails with "The folder <temporary data> could not be created."

http://bugs.winehq.org/show_bug.cgi?id=22428

Summary: World of Warcraft Battle Chest dvd-install fails with
                    "The folder <temporary data> could not be created."
           Product: Wine
           Version: 1.1.43
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: Installer
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

This happens when installing from a mounted .iso, but not when
installing from a directory you copy from the mounted .iso 
or when installing from a real dvd.

Don't know if it's a bug in the installer, or an intended feature in the
installer, or a bug in wine, but it's annoying enough that I figured I'd
record a bug for it.  I'll attach +relay,+file logs of the three cases
up to either the error message or the installer splash.