If you notice that your Internet connection become very slow though everything in your machine looks good. It is possible that some malware, spyware, or adware which may be using your Internet connection in the background without your knowledge. There may be a chance that you may be victim of cyber criminals and some body may by monitoring you constantly and you don’t know it. Something wrong is certainly going on under the hood. The firewalls may not help you except giving you some message like block things that are trying to connect. The free Microsoft TCP View Utility may be a perfect solution in such case.
Microsoft TCP View Utility
What is Microsoft TCP View Utility
TCPView is a free of cost program released by microsoft Corporation. This software will monitor your PC and show you detailed lists of all TCP(Transmission Control Protocol) and UDP(User Datagram Protocol) endpoints on your system, including the local and remote addresses and state of TCP connections. TCPView also reports the name of the process that owns the endpoint on Windows Server 2008, Vista, and XP. It can be used to detect unknown, untoward, misbehaving or data-intensive processes on your network help identify which programs are connecting to the internet and how much data they have sent or received.
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How to use Microsoft TCP View Utility
Close your browser and any programs that you know may connect to the internet e.g. email program, Skype etc. This will help you minimize your display list, within a minute or two the number of endpoints will automatically reduce and it becomes easier to identify or monitor specific processes. If you load TCPView, directly the number of connections from [System Process] to all sorts of Internet addresses may be very high,
As we want to see the IP addresses of connected computer, while using TCPView make sure to disable the resolve address feature. To disable the resolve address feature, click on the Options menu and then uncheck Resolve Addresses, when TCPView is open.
TCPView updates every second by default, but you can change the refresh rate using the Options|Refresh Rate menu.
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Endpoints that changing state from one update to the next will be highlighted in yellow; deleted in red, and new endpoints in green.
To close established TCP/IP connections selecting File|Close Connections, or right-clicking on the connection and choosing Close Connections from the resulting context menu.
TCPView's output window can be saved to a file using the Save menu item.
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