[Bug 31975] New: World of Warcraft "failed to run a program (agent)"

http://bugs.winehq.org/show_bug.cgi?id=31975

Bug #: 31975
           Summary: World of Warcraft "failed to run a program (agent)"
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

Created attachment 42129
  --> http://bugs.winehq.org/attachment.cgi?id=42129
The error message

World of Warcraft worked just as it should.

Until one day. Ever since then, when I try and launch World of Warcraft, a
window pops up with the message "checking for updates..", later followed by a
window with the message:

"failed to run a required program (agent). Wait one minute and try again and if
that doesn't work please restart your computer and try again."

I have tried as it suggests, but I still get the same problem every time. I was
launching World of Warcraft from the .exe in my windows directory, so I tried
downloading and installing world of warcraft into my linux directory instead.
Before it even starts installing I get the same windows popping up.