[Bug 57432] New: dxdiag will return "Windows XP" unconditionally from systeminfo.szOSExLongEnglish

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57432

Bug ID: 57432
           Summary: dxdiag will return "Windows XP" unconditionally from
                    systeminfo.szOSExLongEnglish
           Product: Wine
           Version: 9.21
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: programs
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 77424
  --> https://bugs.winehq.org/attachment.cgi?id=77424
dxdiag.log with windows xp set

Running dxdiag /t dxdiag.log on a new prefix, will show that "Operating System:
Windows XP Professional", despite the prefix being created by default with
Windows 10 configuration on recent versions of wine.

Whatever it is, is caused by dxdiag_info->system_info.szOSExLongEnglish being
specified as Windows XP. I couldn't trace where it was set, after I reached
https://gitlab.winehq.org/wine/wine/-/blob/master/programs/dxdiag/informatio...
and was lost in the source.

Attached the "dxdiag /t dxdiag.log" resulting file.