Vote for Captivate for ISA Server

Captivate for ISA Server from Collective Software is a filter for ISA 2006 and 2004 that adds captive portal functionality to your proxied networks.

Features include: Display a “Terms of Service” screen or policy page which the user must read and acknowledge; On a wireless network segment, always direct the user to a custom start page first, before allowing other browsing. This could be a home page, or an external web app that collects information or payment; On a wireless network segment, track and log new users by IP and MAC address; Require users to authenticate to ISA with a web form before allowing browsing. This is useful when you cannot control the browser proxy settings, but your users will still have accounts that are known to ISA; Block access to other protocols (such as FTP, SSH, etc.) until a user passes the authorization process, then allow those protocols.