We've received reports of a public release of exploits against the windows help system.
The exploits use *.hlp files. The best advise at this point it to block those at perimeters and to never trust them otherwise.
Please note that a few days ago Microsoft released patches for the HTML help system:
MS06-046. But they don't seem to have anything to do with this.
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Swa Frantzen --
Section 66