1)   Document! X 5.0
Document! X automates the process of creating and maintaining documentation for a wide range of solution elements: VB.NET/C#/C++ .NET Projects; VB 5 or 6 / VBA Projects; Compiled COM Components and Controls; COM Type Libs, Databases, XSD Schemas.
documentation, .net, ndoc, help, f1 help, dynamic help, context sensitive help, chm, hxs, help 2,

 2)   Help Explorer Viewer for Linux 3.0
Help Explorer Viewer is a full-featured help viewer for both Windows and Linux. One of its main advantages is 100% support of the WinHelp (.hlp), MS HTML Help 1.x (.chm) and MS Help 2.0 (.HxS) help file formats that are widely used in Windows.
chm, hxs, hxi, winhelp, help viewer, Linux help viewer, help authoring, cross-platform help viewer, Windows help viewer, chm viewer,

 3)   Halftone Search for Google Desktop 1.2.4
This free program extends the Google Desktop (GD) functionality by providing a native Windows interface and allowing GD to access more file formats. Allows you to customize the look and feel, manage plugins, extract compressed archives, and more...
Google Desktop, search, plugin, archives, chm, mht, hxs,

 4)   HelpStudio 2.0
Generate help output in cross-platform plain HTML, HTML Help, Help 2.0 or printable PDF. HelpStudio seamlessly combines a feature packed WYSIWYG authoring environment with HTML based layout templates.
help, help tool, help authoring, .net, innovasys, pdf, documentX, online help, chm, hxs,

 5)   Help Explorer Viewer for Windows 3.0
Help Explorer Viewer is a full-featured help viewer for both Windows and Linux. One of its main advantages is 100% support of the WinHelp (.hlp), MS HTML Help 1.x (.chm) and MS Help 2.0 (.HxS) help file formats that are widely used in Windows.
chm, hxs, hxi, winhelp, help viewer, Linux help viewer, help authoring, cross-platform help viewer, Windows help viewer, chm viewer,

 6)   Help Explorer Server 1.0
Help Explorer Server is a web-based application designed for viewing compiled help files in different formats: Microsoft Windows Help (WinHelp) - .HLP, Microsoft HTML Help 1.x - .CHM, and Microsoft Help 2.0 - .HXS.
chm, hxs, hxi, winhelp, help server, help viewer, help authoring, help center, help,