[WEB] Some question

Hi!
I want a webpage for my cheat, and i want to make a login system, to add users.
How can i make this?
Example, someone want to buy, i going to add a username and password to him, and he can login.

This forum is not about how to sell copy pasted cheats.

says enough about the cheat quality if you have to ask.

Just give the .dll to users and belive that they will delete it after some time