[Bug 52209] New: Word 2003 crashes when installing Equation Editor component

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52209

Bug ID: 52209
           Summary: Word 2003 crashes when installing Equation Editor
                    component
           Product: Wine
           Version: 7.0-rc1
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: msi
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 71265
  --> https://bugs.winehq.org/attachment.cgi?id=71265
+msi log

Office 2003 installs without problems with wine-7.0rc1. Trying to insert
equation object in Word document first time triggers its installation. That
crashes Word.

The issue seems to be a crash in ACTION_ProcessComponents(), that happens
because msi_resolve_file_source() return NULL, since REFEDIT.DLL is marked as
IsCompressed.