About .CHM files (compiled Microsoft HTML Help)

A .CHM is the file that is created when you compile a Microsoft HTML Help project. The .CHM contains all the files in your project in compressed format, which occupies less disk space than uncompiled files and is quick to access. The .CHM is specifically designed to display a Microsoft HTML Help system in Microsoft's HTML Help viewer, a window that uses many components of the Internet Explorer browser.

Typically, a .CHM file is used as Help for applications, although you can use it as standalone Help, online books, and other documents. It includes all the HTML Help components from your project, including topics, images, the table of contents, index, etc.

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