Finally - ISA Client for Vista and XP x64 releaseshttp://msmvps.com/blogs/russel/archive/2006/12/12/finally-isa-client-for-vista-and-xp-x64-releases.aspxFinally, Microsoft has released an ISA Firewall Client that officially supports XP x64 and Vista. The download is a single download for both 64-bit and 32-bit, and is the same for all supported versions of Windows, up to and including Vista RTM. So goenCommunityServer 2008.5 SP2 (Build: 40407.4157)