Windows xp service pack 1
У меня появляется сообщение, что ключ неправильный.
А вот, что пишут MS по этому поводу:
Still, the intellectual property protection arena is a cat-and-mouse game. All intellectual property protection technologies will be cracked at some point—it's just a matter of time. The measure of success is not completely stopping software piracy, which is probably an unattainable goal. Success is more likely to be measured in increased awareness of the terms of the license agreement and increased license compliance.