HelpWriter
HelpWriter is an help file editor.You can easy create help files and content files.
Dr.Explain
A software help authoring tool. Dr.Explain captures windows from a live application, makes screenshots and automatically adds references to all window's controls: buttons, fields, lists, and etc. Dr.Explain makes CHM, RTF, and HTML help files.
HelpCruiser
This program allows you to create and transform text documents into any format (HTML,CHM,PDF,XML etc.). HelpCruiser is optimized for solving tasks that appear during the process of creating help files, descriptions and manuals for software products.
HelpNDoc
HelpNDoc provides a clear and efficient interface to build the most amazing html help files without worrying about the inner working of help file generation. Just enter your text in the built-in word processor, hit the "Compile" button and it's done!
Windows HLP To RTF
Windows HLP To RTF is designed to convert Microsoft Windows Help (*.HLP) to RTF format documents.