In an Exchange organization, administrators spend a great deal of time dealing with users, contacts, and groups. The administration tools are very similar to those of Exchange 2000 and require very little additional training to get started. The administration tools include new features, such as drag-and-drop capability, an enhanced interface, and updated versions of the administration tools. Although Active Directory Users and Computers is used for the majority of administrative tasks in Exchange 2003, the Exchange Task Wizard is also useful for basic configuration, setup, and administration on Exchange mailboxes, such as deleting, moving, and merging. Query-based distribution groups use LDAP queries to minimize group additions, deletions, and changes that normally absorb a lot of time for administrators.