NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
cFosSpeed - cFosSpeed is a network driver, which attaches itself to existing Internet connections.