1)   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.

 2)   MGTEK Help Producer 2.2
MGTEK Help Producer is a help authoring tool that allows you to create Microsoft HTML Help 1.0 files, Microsoft Help 2.0 help files, and web based content from a Microsoft Word document.