I'll give you the jab at IE6 but I take strong exception to your Active Directory comment. It is one of the cooler pieces of tech out of redmond and far and away better than the vanilla LDAP servers from Novel or just about anything else in the open source world. And don't get me started on OD in Apple Server... The multi-master replication features, plus distributed file system stuff, plus profiles, plus multisite policy deployments and on and on all made possible becuase of the core AD system. So sure, bag on IE6 but know there are people out there that can do amazing things with Microsoft software and AD is at the core of much of that.