NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
Network Lights - Network Lights is a Windows program, which blinks keyboard LEDs (Light Emitting Diode) indicating outgoing and incoming network packets on network interface.
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...