TCPView by Sysinternals (Microsoft)

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<div><h1><strong>TCPView</strong></h1><div><img src="https://lh4.googleusercontent.com/-eSmxzuURIHU/VE_9UNvIcbI/AAAAAAAANzQ/byMhkFdnaJ8/w120-h88-no/t_tcpview.png" style="border-width: 0px; border-style: solid; width: 120px; height: 100px; float: right;" /></div><h2 style="text-align: left;"><strong>view open TCP connections</strong></h2><p style="width: 75%; text-align: left; ">TCPView will show you a detailed listings of all TCP and UDP endpoints on your system in real-time, including the remote address and state of TCP connections as well as the application or process that is using the connection. </p><p style="width: 75%; text-align: left; ">The program highlights connection entries that are new or about to be closed, making it easy to spot what you are looking for. In addition, you can terminate selected processes or close connections and perform a Whois lookup.</p><p><a href="http://datanestfree.do.am/load/networking_software/network_monitoring/tcpview/52-1-0-920" target="_blank"><h2 style="text-align: right;"><b>Download freeware programs on datanestfree.do.am »</b></h2></a></p></div>