After Greetings, I want to know how to allow access to MSN messenger through ISA Server running in integrated mode only to selected users. MSN messenger version is 6.0. if I am created a protocol rule and packet filter as well to selected group all other users are also able to use messenger. so for ver. 6.0 messenger clients how can I stop access, as I believe it uses http also to connect. Regards, Vijay Dogra.