Wednesday, 7 March 2012

Monitor which apps are using the network/internet

Microsoft Network Monitor at

This free MS tool will capture all network packets and show you which application is responsible for them. This is useful for checking if a newly installed application sends any secret network packets, etc.
You can see the data that it sends in each packet too. A useful tool to have in your box!

There is a support article here and a support forum here.

There are also some specialized plug-ins for it that might be useful:
TCP Analyzer Expert: Make Your Network Run Faster – For Microsoft Network Monitor 3.3
Top Users Expert for Network Monitor 3.3 – For Microsoft Network Monitor 3.3

The first is a post describing the tool which can analyze and suggest issues with your network based on packet capture data. The second provides a report on which users are eating up all the bandwidth.