Before you can use the Help Generator to compile the HTML Help files make sure that the HTML Help compiler (HHC) included with Microsoft HTML Help Workshop (HHW) is installed on your computer. If not, download it here: free download from Microsoft.
The Microsoft HTML Help compiler is part of the HTML Help Workshop of Microsoft. This program compiles a project (.hhp), contents (.hhc), index (.hhk), topic (.html) and other (.gif, .jpeg, etc.) files into the Microsoft htmlhelp file (.chm). It
HTML Help Workshop is an environment for creating and
managing help projects and their related files. But: the HHW HTML
editor only lets you edit raw HTML. We only use the
compiler part of this tool. To make the Help Authoring as easy as possible, you
don't need to worry about the correct HTML, we extended the Help Generator with
a HTML Help editor.