So why this and not SQLite? Just to save the dependency? What makes it "secure"?
So now curiosity has gotten the best of me... is this a private lan or something? The only thing I can think of it is one of those situations where a University gives you a website but it is really really locked down.
Also, try starting it with a dot (".mytest.html") as a lot of servers prevent hosting up files that start with a dot.