are ASPNET and IUSR_Machinename accounts part of NT Authority\Anonymous logon group?

From: Sankar Nemani (
Date: 08/24/04

Date: Tue, 24 Aug 2004 09:55:42 -0700

Do the web accounts ASPNET, IUSR_MachineName, IWAM_MachineName considered
as belonging to NT Authority\Anonymous Logon group?
I was wondering whether they belong to everyone in win2k and not in winxp.