I was ONLY able to get this bug to work with XP and IE 6.
XP and IE 7 and 8 were unaffected, and Windows 2000 and IE 5 crashed, and Windows 2000 and IE 6 did nothing at all.
If you think about it, it's 100% an oversight on the part of the VBScript design team.
the MsgBox() Function with the helpfile and helpcontext arguments is from Full blown Visual Basic for Applications- Applications that, in all likelyhood, will have helpfiles.
the two arguments should have been stripped out when the language was first designed. And if they were added after... well, that's even worse.