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Asked: 2026-05-11T16:22:10+00:00

I have a windows services that bind to some TCP port, this port is

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I have a windows services that bind to some TCP port, this port is use for IPC between my application.

Is there a programming (WinAPI/WinSocket and etc) way to know which application connected to my port?

i.e. in my Windows Services I would like to get a PID of the process that connected to my port.

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1 Answer

  1. Editorial Team

    If you’re looking for WinAPI way of doing the same as netstat. You probably want the following API:
    GetExtendedTcpTable

    Look for the results with TCP_TABLE_OWNER_PID_ALL argument.

    The resulting MIB_TCPTABLE_OWNER_PID structure has many MIB_TCPROW_OWNER_PID structures that has dwOwningPid which is the process ID you are looking for.

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