引用自 marciopatriciosouza：

Ao tentar baixar o Call Of Duty II para instalar o DMZ, aparece essa mensagem:
Ocorreu um erro ao tentar reiniciar: nenhuma licença

If you mean Call of Duty®: Modern Warfare® II - DMZ Beta, Free content can't be shared, whether it's a game or DLC, at all. Call of Duty®: Modern Warfare® II also does not list family sharing as supported feature and requires 3rd party account to play which generally means game can't be shared.

DMZ is part of the standalone MWII game that is no longer a part of the HQ.

This means you need to buy MWII to play the free DLC for it.