Here’s the problem: you’re a Windows system administrator and you want to know what process is listening for connections on a specific port. My first recommendation is to use the built-in netstat command-line tool to view a listing of all listening processes and ports. Here’s an example to get you started.
REM Open an *Administrative* command-prompt to view all processes REM View all netstat options with a command like the following REM netstat /? netstat -abnt >%USERPROFILE%\Desktop\netstat.txt REM open the file "netstat.txt" from your Desktop REM search within the file for ":####" like :8443 for port 8443 REM search for "listen" to see ports accepting connections
For detail on multiple services running within the same process, check out the Sysinternals tool “Process Explorer.” For a graphical tool to view netstat-like network process information, try the Sysinternals tool “TCPView.” The Sysinternals tools provide great insight into system activity, but I recommend that you become familiar with netstat for basic troubleshooting with Windows built-in tools.