Most Windows users never think twice about the Windows Address Book. On the rare occasions when they have to deal with it, they use it for one function only: storing email addresses. Well, okay, that is Address Book's primary task—but this surprisingly powerful small program also has the capability to store a broad range of information about people and places.
In essence, Address Book manages a flat-file database of information, in which each contact record stores details for a single person or company. You can gather two or more contacts into a group, which enables you to send an email message to everyone in the group by entering a single address. You also can organize contacts into folders, keeping family members in a Family folder, business contacts in a Work folder, and so on.