If you plan to run HTML-Kit plugins written in PHP, you'll need a local installation of PHP. This document describes how to download and install PHP on a Windows desktop computer.
HTML-Kit 292 runs on Win 95 through Win 7. If you're having any issues running it on Vista or Windows 7, consider the information in this document.
Want to speed up copying Tidy suggested code to the editor window in HTML-Kit 292?