[Bug 51718] New: msi installer doesn't show messagebox as modal dialog

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51718

Bug ID: 51718
           Summary: msi installer doesn't show messagebox as modal dialog
           Product: Wine
           Version: 6.15
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P2
         Component: msi
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 70600
  --> https://bugs.winehq.org/attachment.cgi?id=70600
Backtrace on how the messagebox is called

Follow up to https://bugs.winehq.org/show_bug.cgi?id=51576
The installer from that issue has a "nag screen" since it's a trial. That
messagebox should be modale, but it's not.