Microsoft engaged in a WGA and OGA verification is actually not too much, after all, it is the other company spent a lot of money and a lot of manpower and material resources to develop. Using the fruits of others' labor, but not spending money, or we are not kind. However, it is too expensive than the old software, originally installed XP or Vista is already very expensive, if you really buy a legitimate office, can not afford to oh really ~ after all, we ordinary people still want to live, not a government agency! But it is really easy to use office ah, we all use pirated also default to ~ ah, but now not, although the function is not affected, was marked with the "pirate software victim" mark always let people feel uncomfortable. But just to fulfill the old saying "trees attract wind", the old bee's enemies looked at the envy, in order to oust the old Bee, at all costs to launch a variety of open source or free office suite for everyone to use - of course, like us poor people who can't afford to spend money!