How could I know whether a program currently using internet at a point in time, in Windows, using c#?

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How could I know whether a program currently using internet at a point in time, in Windows, using C#?
I've tried using Windows "netstat" commands like "netstat -no", but the connection state is shown "ESTABLISHED" even when the program is not transmitting or receiving any network data.
Is there any other ways to know this in C#?

Please give me a solution.
Thanks in advance.

Posted 23-Jan-15 4:58am

Member 11138570

Updated 23-Jan-15 5:00am

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Richard MacCutchan 23-Jan-15 11:47am

You cannot know, since such activities take place in sub-second time frames.

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**Zoltán Zörgő** · Answer 1 · 2015-01-23T05:56:00

Solution 1

I am pretty sure it can be retrieved without fancy hacks. Consult Process Hacker's[^] code. What can be done in C++ in such case, can be also done in C#, with p/invoke at least...
WMI Win32_PerfRawData_PerfProc_Process[^] has IO properties, but thos include all IO activity.
What you can try is using performace counters, like described here: http://stackoverflow.com/questions/17026204/retrieve-process-network-usage[^].

Posted 23-Jan-15 5:56am

Zoltán Zörgő

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Member 11138570 24-Jan-15 0:38am

Thank you sir. Could you please help me on how to use Performance Counters to know the current network usage of a process?

Zoltán Zörgő 24-Jan-15 5:14am

Have you read the solution proposed on the second link? It is all about that.

Member 11138570 25-Jan-15 0:44am

Yes sir, I've read it. But it gives the whole I/O read/write statistics. I want only the network usage. How could I retrieve only the network usage of a process?