Two times PlanetSourceCode.com Contest winner. Sniffer.NET is an open source Network Packet Capture and Network Monitoring Tool in VB.NET. It utilizes the power of Packmon.NET Library written in VB.NET which can monitor all network traffic. Now Supports User plugins which can be written in any .Net Language till they expose the IPlugin interface. Sample Plugin is also provided with the Source.
||Windows NT/2000/XP/2003 Server, .Net Framework 1.1 or above