ISA 2006 SP1

I have just found out that Microsoft will very soon ( summer 2008 ) release a long awaited (at least for us) service pack for ISA Server 2006. We are currently have issues with Kerberos authentication between Internet Explorer 7 and ISA Server 2006 when we use proxy authentication. On some systems IE7 keeps prompting the user for a username and password. We have to manually deactivate Kerberos (disable “Enable integrated windows authentication” option in IE7) in order for the password dialog not to show up. Hopefully the service pack will fix this issue. Other than this issue ISA 2006 proved to be a very reliable solution; we currently have a 110 days uptime on our server.