How to find program using com port

Thanks for your feedback, it helps us improve the site. In reply to Irfan H's post on September 13, I expanded almost all of the nodes on the tree to see if maybe COM ports were hidden one level down, but I still don't see them.

I am using Windows Vista Ultimate. David O Alexander. In reply to ArtDecade's post on September 13, I have Vista. You can copy the command and paste it in the command prompt window by right-clicking inside it.

In the resulting output, you will see the port number right next to the IP address ex: You can see the highlighted portion in the below image for better representation.

Keep in mind that the list will not be refreshed automatically. You have to execute the command again when you need an updated list. If you want the used port list to be updated automatically, use the below two methods.

Nirsoft Utilities has a pretty neat and lightweight tool called CurrPorts which lists all the ports that are in use by Windows and other programs. First, download CurrPorts from the official website. After downloading, extract the exe file from the zip file and double-click on it to open. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. How to find out which ports are used by a program? Ask Question. Asked 4 years, 9 months ago. Active 4 years, 9 months ago. Viewed 42k times. Improve this question. Black Black 6, 16 16 gold badges 36 36 silver badges 55 55 bronze badges. You do know in most cases opening a port for a program isn't required unless you explicitly closed the port.

Most consumer routers don't do that. I have to specify the port range which my computer game uses so that I can select that game for the priority rule. Thats why I need to know the ports. In case one wants to locate a process by port? Steve Baker Steve Baker 4, 1 1 gold badge 19 19 silver badges 14 14 bronze badges. Mikezx6r Mikezx6r Windows comes with the netstat utility, which should do exactly what you want. Adam Rosenfield Adam Rosenfield k 95 95 gold badges silver badges bronze badges.

At a command line, netstat -a will give you lots o' info. CodeRot CodeRot 6 6 silver badges 12 12 bronze badges. I'd vote this up if I had any votes left. CharlesB It does if you add the -o option. Arne Evertsson Arne Evertsson Toby Mills Toby Mills 2 2 gold badges 9 9 silver badges 13 13 bronze badges. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta.

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