TrafficFilter for Microsoft ISA Server
TrafficFilter - is a MS ISA Server extension that provides customizable control of Internet access. It enables management to block or allow workers' access to Internet, based on the volume of data downloaded (or uploaded) from the Internet.TrafficFilter assign a Traffic quota on a user (or group) basis. For example, user 'John' is allowed to download 500 MB a month (week, day), and after this she is denied access to the Internet on that month.