FAR HTML 5 A collection of advanced help authoring & file utilities for Windows and Visual Studio help.
 MshcMigrate Migrate .chm (HTML Help) and .HxS (VS 2002/2003/2005/2008 help) to VS 2010/2012 help (aka MS Help Viewer).
 H2Reg Register and integrate into VS 2002/2003/2005/2008 help collections (.HxS, MS Help 2) without MSI.
 H2Viewer MS Help 2 alternative viewer and utilities. Free for personal use.
 H3Viewer MS Help Viewer 1.x alternative viewer (VS 2010 help viewer). Free for personal use. 

HelpMaster Publication Series - Get on the fast track to leaning.