http://192.168.2.20/blogs/doverton/archive/2006/12/19/isa-2004-meet-vista-vista-meet-isa-2004-client-so-that-you-can-now-work.aspxIf you are using Vista and ISA, you will be used to getting a compatibility warning when the client loads. Well, this KB and download gives you a time when that is no longer the truth :-) From the joys of Susan B's blog View article... .. How to obtainenCommunityServer 2008.5 SP2 (Build: 40407.4157)