1)   GFI WebMonitor for ISA Server 3.0
GFI WebMonitor is a utility for Microsoft ISA Server that allows you to monitor the sites users are browsing and what files they are downloading in REAL TIME. It can block access to adult sites & performs anti-virus scanning on all downloads.

 2)   TrafficQuota 1.0
TrafficQuota is a quota enforcement extension for Microsoft ISA Server. It enables you to restrict or allow users' access to the Internet, based on the volume of data downloaded (or uploaded) from the Internet.

 3)   ClientIPForwader 1.4.6
ClientIPForwarder is ISAPI plug-in for Microsoft ISA server inserts remote client IP address into http(s) header allowing to monitor real client IP addresses from Application layer protocol, creates or replaces variables in http(s) header.