[Bug 8478] New: p4win installer reports failure

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=8478

Summary: p4win installer reports failure
           Product: Wine
           Version: CVS
          Platform: Other
               URL: http://www.perforce.com/perforce/downloads/ntx86_64.html
        OS/Version: other
            Status: NEW
          Keywords: download, Installer
          Severity: normal
          Priority: P2
         Component: wine-ole
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Once past bug 8477, the installer for p4win seems
to run ok, but when it finishes, it says:
 The installation has completed with errors. 
 Please email [e-mail] or call 
 Perforce Technical Support at 510-864-7400. 
 We will need to review the file c:\windows\temp\Perforce.log
That log says
 _RegisterFile(): c:\Program Files\Perforce\p4exp.dll, DllRegisterServer() failed
I'll attach a +ole,+text log, but it doesn't seem to be too illumunating.

This is with wine-0.9.37-g7eaf1fe, current as of Monday.