This isn't pretty but it works for Windows based systems using built in OS tools...
1) Go to a DOS Prompt 2) Run netstat -noa 3) Look at the list showing the port you want and then grab the PID from that list 4) Run Tasklist | findstr PID from above That should provide you the process name using the port. Here are some more details and options to illustrate: C:\>netstat -noa Active Connections Proto Local Address Foreign Address State PID TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4 NOTE - if you are only looking for a certain port you can pipe this output to findstr as below: netstat -noa | findstr portnumberyouwant EXAMPLE: to find something listening on port 80 do this: C:\>netstat -noa | findstr :80 TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4 TCP 192.168.14.205:59731 206.190.52.34:80 ESTABLISHED 2648 TCP [::]:80 [::]:0 LISTENING 4 Next I see that I want to know what the process(executable) is with PID 2648 so I do this: C:\>tasklist | findstr 2648 iexplore.exe 2648 Console 1 191,136 K Which tells me that the Process with PID 2648 is Internet Explorer and it is using port 80. ________________________________ From: "Hart, Robert" <robert.h...@genexservices.com> To: NT System Admin Issues <ntsysadmin@lyris.sunbelt-software.com> Sent: Thursday, April 9, 2009 1:36:48 PM Subject: RE: Too to find what .exe has a port open Try Free Extended Task Manager by Extensoft. Then again it depends why you are asking this question. I would not put this on a server I am almost positive it requires a install. I have not tried just running the exe without installing. http://www.extensoft.com/?p=free_task_manager Bob From:David Lum [mailto:david....@nwea.org] Sent: Thursday, April 09, 2009 2:09 PM To: NT System Admin Issues Subject: Too to find what .exe has a port open I have tools that tell me WHAT port is open, but nothing to tell me what app has the port open. What do you guys use? (yes probably discussed here before…) David Lum// SYSTEMS ENGINEER NORTHWEST EVALUATION ASSOCIATION (Desk) 971.222.1025// (Cell) 503.267.9764 ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
