NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
Fping (open source) - fping is a program to send ICMP echo probes to network hosts, similar to ping, but much better performing when pinging multiple hosts.
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
NetTK - NetTK, Network Tool Kit, is an Open Source alternative for monitoring and troubleshooting your...
Bandwidth Manager - Bandwidth management, bandwidth limiting and traffic shaping software for Windows
PingDoctor - PingDoctor is software that is considered to be the most powerful and easiest to use network route analyzer.