Sim, a empresa criadora do Ardamax é registrada, mas o uso que faz-se deste programa não. O uso que você fizer deste Keylogger, caso coloque-o em um programa registrado como o NG Soft ******** NG é ilegal, e pode ter certeza que isto não seria feito pela própria NG Soft, que é uma empresa legalizada e criadora do programa.
Cláusulas? Desculpe, não tenho acesso a Constituição Norte-Americana, mas se a empresa está registrada ela também está sujeita a processos por parte dos usuários caso cometa isto.
Além disso, eis a palavra do Lord Of War, dono da NG Soft, a respeito disso, citando as tais cláusulas (referindo-se a legalidade de seu produto, o NG Soft ******** NG, perante o produto que este afeta, ou seja, o Cipsoft Tibia Cliente):
I would just like to make it clear that using a cheat for Tibia, by copyright law, is legal in all known countries.
The U.S.A. has federal copyright laws and many other countries submit to international laws that grant the same protections under different names. Such as the Berne Convention, Rome Convention, TRIPS, WCT and WPPT. For the sake of keeping this short I will focus on the U.S. laws since they are the most restrictive. However, for your own country it's always best to do research on your own laws.
First let me explain what a copyright is and what it covers.
U.S. Copyright Law {Title 17 U.S.C. Section 101 et seq., Title 18 U.S.C. Section 2319} Federal law protects copyright owners from the unauthorized reproduction, adaptation, performance, display or distribution of copyright protected works.
If anyone other than the owner of the copyright does any of these things with a copyrighted work, they violate the copyright of the owner, unless it's provided by "fair use"..
In 1998 the DMCA was passed which further extends the protections as followed.
U.S. Copyright Law {Title 17 U.S.C, Section 1201} No person shall circumvent a technological measure that effectively controls access to a work protected under this title. The prohibition contained in the preceding sentence shall take effect at the end of the 2-year period beginning on the date of the enactment of this chapter.
Under copyright laws, using a cheat for a video game, under no circumstances, violates any of these conditions and is therefore legal according to copyright laws. Tibia doesn't even have any copy protection so the DMCA and other limitations for prevention of circumvention do not even apply.
In short, copyrights apply to copying, not cheating. Do not believe anyone that tells you otherwise unless they are a lawyer. Then again, I'm not a lawyer either but I know how to read and I did stay In Holiday Inn Express last night.