System Center Configuration Manager - Simplify your datacenter and IT management for increased agility and performance with Microsoft System Center 2016.
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.
FusionInventory - Fork of the OCS Inventory project that enables users to inventory their IT assets.
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
Open-AudIT - Open-AudIT is a network auditing application.
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.