[Bug 16673] New: Mathematica 7 trial installer complains "Source file is corrupt"

http://bugs.winehq.org/show_bug.cgi?id=16673

Summary: Mathematica 7 trial installer complains "Source file is
                    corrupt"
           Product: Wine
           Version: 1.1.11
          Platform: Other
               URL: http://www.wolfram.com/products/mathematica
        OS/Version: other
            Status: NEW
          Keywords: download, Installer
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Installing goes fine until:

001b:Call user32.CharPrevA(00615c68 "The source file is corrupted",00615c84 "")
ret=0042c880
001b:Call user32.MessageBoxA(0001002e,00cb28fc "C:\Program Files\Wolfram
Research\Mathematica\7.0\AddOns\Applications\RemoteServices\Java\wolfram-remote-services-client.jar\r\n\r\nAn
error occurred while trying to copy a file:\r\nThe source file is
corrupted.\r\n\r\nClick Retry to try again, Ignore to skip this file (not
recommended), or "...,0061659c "Error",00000032) ret=00424723

That looks like an InnoSetup error.  The source at
http://www.innosetup.com/isdl.php
shows that there are several things that can trigger that error,
and it's hard to tell which one it was, even with a +file,+relay log.