[1] : Jargon File (4.3.1, 29 Jun 2001)

halloween documents n. a pair of microsoft internal strategy memoranda
   leaked to esr in late 1998 that confirmed everybody's paranoia about the
   current evil empire. these documents
   http://www.opensource.org/halloween/ praised the technical excellence
   of linux and outlined a counterstrategy of attempting to lock in
   customers by "de-commoditizing" internet protocols and services. they
   were extensively cited on the internet and in the press and proved so
   embarrassing that microsoft pr barely said a word in public for six
   months afterwards.


see also:
evil empire linux 

Halloween >> H Words
Halloween, definition of term: Halloween
halloween_pag1.html