I needed a quick and dirty web server on an XP box for a project at work without the fuss of setting up Apache et al. I found just the thing, the Abyss web server from Aprelium Technologies. No source, unfortunately, but I do not need source for my task. The configuration is 100% in simple, highly usable web pages, and it is rather more full featured that I need, but not so much so to get in the way. And the price is $0. Works for me.