Visual Sniffer is a powerful packet capture tool and protocol analyzer (packet sniffer or IP sniffer) for use with the Microsoft Windows operating system.   Visual Sniffer 2.1 is available as free software.  

Visual Sniffer is used by LAN administrators and security professionals for network monitoring intrusion detection and network traffic logging.   It is also used by software developers for inspecting the network traffic sent and received providing a full picture of network activity in use by their applications.   Parents use VisualSniffer to know what kids are doing online, and can identify whether sensitive files are being sent by Spyware.   Student discover how networks operate and learn the mechanics for each network protocol.