[Bug 5751] New: Corel Word Perfect X3 installer crash in MsiProcessMessage

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=5751

Summary: Corel Word Perfect X3 installer crash in
                    MsiProcessMessage
           Product: Wine
           Version: CVS
          Platform: Other
               URL: http://www.corel.com/servlet/Satellite?pagename=Corel3/D
                    ownloads/Trials
        OS/Version: other
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: wine-msi
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

You don't even need to do anything but start the installer
to get it to crash.  Log highlights:
...
fixme:msi:ACTION_AppSearchReg AppSearch unimplemented for type 1 (key path
L"SOFTWARE\Classes\mailto\shell\open\command", value (null))
fixme:msi:ACTION_AppSearchComponents AppSearch unimplemented for CompLocator
table (GUID L"{E28CC994-7032-4FD5-9527-255849FDFE6E}")
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code
(0x7edb6e9a).
...
=>1 0x7edb6e9a MSI_ProcessMessage+0x865(package=0x5a0020,
eMessageType=0x8000000, record=0x62bce0)
[/home/dank/wine-git/dlls/msi/../../include/wine/unicode.h:203] in msi (0x7edb6e9a)
  2 0x7edb705d MsiProcessMessage+0x67(hInstall=0x1, eMessageType=0x8000000,
hRecord=0x2) [/home/dank/wine-git/dlls/msi/package.c:758] in msi (0x7edb705d)
  3 0x1000b671 in msi61f2.tmp (+0xb671) (0x1000b671)
  4 0x7ed96da5 DllThread+0x3be(info=0x604818)
[/home/dank/wine-git/dlls/msi/custom.c:438] in msi (0x7ed96da5)
...
0x7edb6e9a MSI_ProcessMessage+0x865
[/home/dank/wine-git/dlls/msi/../../include/wine/unicode.h:203] in msi: cmpw   
    $0,0x0(%ecx)
203         while (*s) s++;