How does Tekno ban you

Hi guys,
I want to make an unbanner so i searched for some usefull stuff to unbann myself.

First of all:
I wanted to edit the TeknoMW3.dll but its protected, so when you want edit and launch it, it won't start (as steam_API.dll)
and
the TeknoLauncher gives me the Error: Wrong TeknoMW3.dll


Then i want to edit my HWID ingame.
I got 3 pointers that should be my HWID (SAT ban you with them).
And when i want to edit them and then connect to a Server im unbanned but after 5-10 sec i get kicked
and this Error pops up: [Violation]: Detected

So does anybody know how to bypass the Ingame Error or another way to unbann.