[plt-scheme] anyone written a web-server app that drops privileges on Unix?

On Feb 16, YC wrote:
> I am not aware of a portable way of setuid on Windows, as you need
> to have the password of the user in order to switch to that user.
> The closest thing that I came across is
> http://www.joeware.net/freetools/tools/cpau/index.htm, which
> encrypts the credentials so you do not need to enter it everytime.

Does it even make sense to do that?  At least on XP when I try to
listen on some random port I get a popup that offers to unblock the
application -- so even if my user wouldn't have administrator
privileges there wouldn't be any need for doing that.

-- 
          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!