Snap2HTML takes a 'snapshot' of folder structures on your harddrive and saves it as HTML files. What's unique about Snap2HTML is that the HTML file uses modern techniques to make it feel more like a 'real' application, similar to Windows Explorer, displaying a treeview with folders that you can click to view the files contained within and browse the directories and see properties like date and size. There is also a built in file search. Still, everything is contained in a single HTML file that you can easily store or distribute.
Download and use it now: Snap2HTML