[Bug 25074] New: dotnet30 install fails with status 87 in wine > 1.3.4?

http://bugs.winehq.org/show_bug.cgi?id=25074

Summary: dotnet30 install fails with status 87 in wine > 1.3.4?
           Product: Wine
           Version: 1.3.5
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Doesn't happen in wine-1.3.4, but does in 1.3.5 and git.

First reported at http://code.google.com/p/winezeug/issues/detail?id=192

To see it in action, do 'winetricks dotnet30', then when the tray icon
is created, doubleclick it so the install window opens up again.
The failure happens in the first few seconds, the gui says there's
been an errror (but nothing suspicious happens in the console), and it
takes some time unwinding the install.  The installer then exits with nonzero
status, which in winetricks shows up at

Note: command 'wine $HOME/.cache/winetricks/dotnet30/dotnetfx3.exe' returned
status 87.  Aborting.

Bisecting is next.