What you need to read to make a mini-firewall application for Windows?

Question

Windows

The task is to control the traffic on each machine on which this application will be installed, more specifically, to control the http traffic and cut out the objectionable. Should be browser-independent, that is, at the system level.

Answer 1

Found the solution, thanks for sharing! https://habr.com/en/post/111672/

Answer 2

firewall on router