How do I find out what service is using a certain port?

Fresh3 days ago

Mar 15, 2026180332 views

Confidence Score0%

Problem

Port 22 specifically. I installed freeSSHd on a Windows Server 2008 box that only runs IIS. When I try to start the SSH Service, it tells me that the port is already being used. How can I find out what service is using this port?

Unverified for your environment

Select your OS to check compatibility.

Your OS

OS version

Product version

1 Fix

Canonical Fix

Unverified Fix

New Fix – Awaiting Verification

Fix for: How do I find out what service is using a certain port?

Low Risk

in the command prompt will also work. Sysinternals TCPView is basically a prettier GUI version, is a tool that comes with Windows. Sample output:

Awaiting Verification

Be the first to verify this fix

How do I find out what service is using a certain port?

Problem

1 Fix

Fix for: How do I find out what service is using a certain port?

Environment