Networx is a simple and free, but powerful tool to help you evaluate your situation objectively bandwidth. You can use it to collect usage data bandwidth and to measure the speed of your Internet or other network connection. Networx can help you identify possible sources of network problems, make sure you do not exceed the bandwidth limits have been specified by your ISP, or track down suspicious network activity characteristic of Trojan horses and hacker attacks.
CurrPorts displays a list of all currently open TCP / IP and UDP ports on your local computer. For each port in the list, information on the process that opened the port is also displayed, including the process name, version information, the user who created it, and more.
In addition, CurrPorts allows you to close unwanted TCP connections, kill the process that opened the ports, and save the TCP / UDP ports list HTML file, and more.
Networx is a simple and free, yet powerful tool to help you assess objectively the situation of your bandwidth. You can use it to collect data on the use of bandwidth and to measure the speed of your Internet or any other network connection. Networx can help you identify possible sources of network problems, make sure you do not exceed the bandwidth limits set by your ISP, or track down suspicious network activity characteristic of Trojans and attacks by pirates.
WirelessNetView is a small utility that runs in the background, and monitor the activity of wireless networks around you. For each network detected, it displays the following information: SSID, the last signal quality Average signal quality, against detection, the algorithm authentication, encryption algorithm, and more.
System requirements:
* Wireless Network Adapter.
* Windows Vista or Windows XP/SP2 with updated KB918997 installed. Remember that in Windows XP with SP2, WirelessNetView not work at all without installing this update.
IP Sniffer is a suite of intellectual property tools built around a packet sniffer.
The packet sniffer can work on all versions of Windows using either the new raw materials implementation of Windows2000 (driver) or WinPCAP (must be installed) or a protocol NDIS (must be installed, not restart).
The sniffer has the basic characteristics of filter, decode, replay, analyze.
The packet sniffer can work on all versions of Windows using either:
* The latest vintage of implementation taken Windows2000 (driver),
* WinPCAP (must be installed),
* A protocol NDIS (must be installed, not restart).
DC++ is an open source client for Windows for the Direct Connect network. Direct Connect allows you to share files over the Internet without restrictions or limits. The client is completely free of advertisements and has a nice, easy to use interface. Firewall and router support is integrated and it is easy and convenient to use functionality like multi-hub connections, auto-connections and resuming of downloads.

Network Traffic Monitor shows you which processes in your machine are causing TCP/IP network traffic, how much traffic that is, and over which IP ports this traffic takes place.

For each process it can show detailed information, including the path to the process executable. Network Traffic Monitor can give you a historic overview of the network traffic since the application was started, and save that info to a file for later examination.
Network Monitor is a protocol analyzer. It allows you to capture network traffic, view and analyze it.