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Windows tool to find out which port an app is trying to use?

Fresh7 days ago
Mar 15, 202660573 views
Confidence Score0%
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Problem

I am guessing that netstat shows apps and their ports that already have a connection and it doesn't show or can't show an app that is trying to open a connection. If I have an app that's trying to connect to the net but is blocked by a firewall, how do I know which port it's trying to use?

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Fix for: Windows tool to find out which port an app is trying to use?

Low Risk

You can use TCPView from Microsoft/Sysinternals. If you find it difficult to capture the port opening with that utility, than the best bet is to install and run Wireshark to get a network trace (assume you aren't talking about a local software-based…

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