Reference > Project Configuration Settings > Publishing Options

Visual Studio Help is available in two versions, Visual Studio Help 2008 and 2010, which are also known as MS Help 2.0 and MS Help 3.0, respectively. Originally, each of these help formats was announced as the upcoming the successor to HTML Help. However, in both cases Microsoft then backpedaled and it now seems clear that they are not going to be released as help formats for normal user applications.

You cannot use Visual Studio Help for normal applications

Please note that these are special help formats that are only used for documenting programming components integrated in the Visual Studio .NET programming environment. They are not suitable for any other purpose and cannot be used for normal help projects for application programs!

Shared settings:

The options in the HTML Export Options section are shared by all HTML-based output formats (HTML Help, WebHelp, Windows Exe and ePub eBooks and Visual Studio Help). These settings are accessible in the WebHelp and HTML Help sections of your project configuration. Some settings are not relevant for some formats and they are ignored in those formats.

These are the general settings for all HTML output formats, including image conversion and export options and the options for the CSS style sheet used to export the style formatting information from your project. Here too, there is only one CSS style sheet and one set of HTML Export Options for all these output formats. You cannot enter different settings for each output format.