An HTML Help Workshop developer creates help files, documentation, and tutorials for software applications. They use Microsoft's HTML Help Workshop, a help authoring tool, to compile HTML pages into a help file format (.chm). They organize and structure content, create a table of contents, index keywords for easy navigation, and integrate help files into applications. They may also design pop-up windows or context-sensitive help features. Their goal is to provide clear, user-friendly instructions and information that assist users in understanding and troubleshooting software applications, improving user experience and reducing support requests.