Crysnet Bandwidth Manager is an easy-to-use network traffic management tool for Windows NT/2000/XP/2003. It increases the network efficiency immediately with a reduction in your overall bandwidth requirement while allowing business-critical network applications to run smoothly.

Main Features:
1. Centralized configuration and management
2. Prioritized, bidirectional rules to specify maximum data rates
3. Rules for IP and MAC addresses, protocols, ports (for TCP & UDP) and network interfaces
4. Transparency for end users, software installation is only required on the server machine
5. Statistics window to monitor the network traffic in real time
6. GUI program can be used remotely to change bandwidth setting

The license of this software is Free Trial Software, the price is $29.95, you can free download and get a free trial.