HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.
HelpSmith - HelpSmith is a help authoring tool to create CHM HTML help files, manuals, and PDF documents.
Dr.Explain - Dr.Explain software is a help file authoring tool.
FastHelp - FastHelp is a Windows Help File Generator that produces online and offline documentation.
TKO Software - TKO Software offers Policy Guides cloud based software system for businesses and organisations of any size to help them document and share their policies and procedures with their staff.
HelpScribble - HelpScribble is a full-featured help authoring tool for easily creating professional Windows help files from start to finish.