NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
cFosSpeed - cFosSpeed is a network driver, which attaches itself to existing Internet connections.
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...