Thanks for the link Andre.
I took a quick look, but I don't understand how it can fulfill what I want?
Can it be used to provide a similar service to
www.co.cc ?
Let's say my domain is xx.yy, I want other people to be able to open
www.xx.yy (my website) and then register "theirname.xx.yy" automatically. I don't think this can be accomplished by using afraid.org ?