[Bug 30276] New: Steam installer crashes after clicking first Next button

http://bugs.winehq.org/show_bug.cgi?id=30276

Bug #: 30276
           Summary: Steam installer crashes after clicking first Next
                    button
           Product: Wine
           Version: 1.4
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

Created attachment 39550
  --> http://bugs.winehq.org/attachment.cgi?id=39550
backtrace from SteamInstall.msi

I've been unable to install Steam for some time, across multiple versions of
Wine dating back maybe six months.  Current version is 1.4.  I run the
installer, downloaded from the Steam site, as follows:

$ wine msiexec /i SteamInstall.msi

It starts the installer and displays the first dialog, with Next and Cancel
buttons.  When I click Next, it crashes with the attached backtrace.

In trying again to check a few things for this bug report, I noticed it says:

+----------------------------------------+
  |              Steam Setup               +
  +----------------------------------------+
  | Resuming the Steam Installation Wizard |
  |                                        |
  | Are you ready to have the Installation |
  | Wizard continue the installation?      |
  |                                        |
  +----------------------------------------+
  |                   | Next> | | Cancel | |
  +----------------------------------------+

So possibly the problem is with leftovers from a previous installation attempt.
 I don't know how to clear them out, though.