The Halloween documents comprise a series of confidential Microsoft memoranda on potential strategies relating to free software, open-source software, and to Linux in particular, and a series of media responses to these memoranda. Both the leaked documents and the responses were published by open-source software advocate Eric S. Raymond in 1998.
The documents are associated with Halloween because many of them were originally leaked close to October 31 in different years.
Overview
The first Halloween document, requested by senior vice-president Jim Allchin for the attention of senior vice-president Paul Maritz and written by Microsoft program manager Vinod Valloppillil, was leaked to Eric Raymond in October 1998, who immediately published an annotated version on his web site. The document contained references to a second memorandum specifically dealing with Linux, and that document, authored by Vinod Valloppillil and Josh Cohen at Microsoft, was also obtained, annotated and published by Raymond. Microsoft later acknowledged the documents' authenticity. Marked "Microsoft confidential", the documents identified open-source software, and...