![Colasoft BlogFind out which process/application is using which TCP/UDP port on Windows - Colasoft Blog Colasoft BlogFind out which process/application is using which TCP/UDP port on Windows - Colasoft Blog](http://blog.colasoft.com/wp-content/uploads/2011/01/find_port1.png)
Colasoft BlogFind out which process/application is using which TCP/UDP port on Windows - Colasoft Blog
![Error message "Could not start DNS service on <ip-address> port 53 UDP. Port is used by another application" or "Could not start DNS service (Error 10048)" Error message "Could not start DNS service on <ip-address> port 53 UDP. Port is used by another application" or "Could not start DNS service (Error 10048)"](https://simpledns.plus/kb/img/47/1.png)
Error message "Could not start DNS service on <ip-address> port 53 UDP. Port is used by another application" or "Could not start DNS service (Error 10048)"
![networking - How do I find out which process is listening on a TCP or UDP port on Windows? - Stack Overflow networking - How do I find out which process is listening on a TCP or UDP port on Windows? - Stack Overflow](https://i.stack.imgur.com/I2UzJ.png)