Microsoft Compiled HTML Help
Introduction
Microsoft Compiled HTML Help (CHM) is a proprietary online help format developed by Microsoft. It is widely used for software documentation and help files, providing a structured way to present content in a hyperlinked format. CHM files are essentially collections of HTML pages that can be packaged together, making it easier for developers to distribute help files with their applications.
History
The CHM format was introduced in the mid-1990s alongside Windows 95. It was designed to replace the older WinHelp system, offering more advanced features such as support for HTML, which allowed for richer content presentation. Over the years, CHM has been integrated into many Microsoft products and has become a standard for creating help documentation for Windows applications.
Features
Microsoft Compiled HTML Help comes with several features that contribute to its popularity:
- Hyperlink Navigation: CHM allows for easy navigation between topics using hyperlinks, making it user-friendly.
- Search Functionality: Built-in search capabilities enable users to quickly find the information they need within the help file.
- Multimedia Support: CHM supports images, audio, and video, allowing authors to create more engaging help content.
- Indexing and Table of Contents: CHM files can include an index and table of contents, aiding users in locating topics efficiently.
- Compact File Size: CHM files are compressed, which means they take up less disk space compared to traditional help formats.
- Platform Independence: While primarily used on Windows, CHM files can be accessed on other platforms using compatible viewers.
Common Use Cases
Microsoft Compiled HTML Help is commonly used in various scenarios, including:
- Software Documentation: Many software developers use CHM to provide comprehensive help documentation for their applications, enabling users to understand features and functionalities easily.
- User Guides: CHM is often employed to create detailed user guides that assist users in navigating software products effectively.
- Technical Manuals: Technical writers utilize CHM to compile manuals that cover complex topics, offering a structured format for presenting information.
- In-app Help: Many applications integrate CHM files to provide context-sensitive help, allowing users to access relevant information directly within the software.
Supported File Formats
Microsoft Compiled HTML Help supports the following file formats:
.chm(Compiled HTML Help file).html(HTML document).htm(HTML document).gif,.jpg,.png(Image formats).wav,.mp3(Audio formats).avi,.mp4(Video formats)
Conclusion
Microsoft Compiled HTML Help remains a valuable tool for software developers and technical writers looking to create effective and user-friendly help documentation. Its ability to package multiple HTML pages, along with multimedia support and robust navigation features, makes it a preferred choice for many applications.