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

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

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.

Asked by: Guest | Views: 44
Total answers/comments: 2
Guest [Entry]

"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 firewall."
Guest [Entry]

If it's a software firewall then make an exception for the whole application so that you can easily check with netstat or tcpview which port it's using. After that you can remove the exception and add a rule for that specific port