[Bug 39135] New: Star Wars Republic Commando launcher crashes when starting game

https://bugs.winehq.org/show_bug.cgi?id=39135

Bug ID: 39135
           Summary: Star Wars Republic Commando launcher crashes when
                    starting game
           Product: Wine
           Version: 1.7.50
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mshtml
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 52145
  --> https://bugs.winehq.org/attachment.cgi?id=52145
trace+mshtml,trace+urlmon

To reproduce this bug, open LaunchRC.exe and click START GAME. The game will
start, but the launcher crashes instead of exiting cleanly. No other button has
a problem.

`winetricks dlls ie8` avoids the crash. Further testing revealed that
overriding mshtml.dll and urlmon.dll is sufficient.

For what it's worth, I've been able to figure out that the program crashes
because This->site is null at the IActiveScriptSite_OnLeaveScript macro in
exec_global_code in dlls/jscript/jscript.c.