Um ... I would have to disagree with this. I'm running mixed 98/2k/XP environments in several places with 2k domain controllers and haven't seen ANY problems with speed/performance or security issues. What exactly are you talking about ? Paul Nuernberger -----Original Message----- From: Faizal Khan [mailto:badguy@xxxxxxxxxxxxxxxxx] Sent: Tuesday, April 16, 2002 7:06 PM To: [ISAserver.org Discussion List] Subject: [isalist] XP & ISA http://www.ISAserver.org Hi, Following up on a conversation with WindowsXP & ISA. First of all it is my recommendation not to add a windows xp client to a windows2000 domain controller. I am speaking from experience with this. XP slows down both the client and the server and the authentication method seems somewhat reversible. Keep at windows2000 until a patch is released to fix this problem. With Kind Regards, Khan. ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: pen@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')