How to write a remote access system in assembler?

Question

assembler

I want to write something like a team viewer. What knowledge should I have?

Answer 1

the biggest problem will not be in assembler per se.
but how do you get to the screen data, for example
, and how do you send the data to the network
, that is, decide:
1) whether you will write the network stack in assembler or use the network stack of the operating system
2) to work with the screen, decide in which OS the case will take place.

Answer 2

First ask yourself:
1. Do you understand the difference between a programming language and technology?
2. Do you know the difference between the words time and team?
And so - you should have a good knowledge of the following technologies - system libraries for working with the screen, mouse and keyboard, and network protocols.