Microsoft Help 2

Microsoft Help 2 is a help format developed by Microsoft. It normally comes "wrapped in" a viewer program (in Portable Executable format). It was intended to be the successor to CHM, AKA "Microsoft Help", but saw little use outside of software development programs and Microsoft Office. It was succeeded by Microsoft Help Viewer.

Extensions
From help-info.de
 * .HxS - compiled help
 * .HxC - project file
 * .HxT - table of contents
 * .HxK - index
 * .HxE - "Sample Definition File"
 * .HxV - "Virtual Topic Definition File(s)"
 * .HxA - "Attribute Definition File"

Specifications

 * Unofficial specification

Links

 * Help2
 * Helpware: MS Help 2.x
 * Microsoft Help 2.0, lecture notes
 * Microsoft Help Wiki: MS Help 2
 * Microsoft Help 2