Web site <http://www.eden.com/~tfast/iisbug.html> notes
they have
> found a severe bug that allows any remote user on the Internet to
> halt web services on an Microsoft NT 4.0 server running Microsoft's
> Internet Information Server version 3. This bug appears to unaffected
> by the installation of Service Pack 3.
They also provide links to the patches.
FWIW.
--Glenn Cole
Software al dente, Inc.
[log in to unmask]