Active Directory Users and Computers in Windows 2000

The Active Directory Users and Computers (ADUC) tool is a central Microsoft Management Console (MMC) snap-in introduced in Microsoft Windows 2000 Server to handle everyday directory administration. This article explains the core purpose of ADUC, detailing how administrators use it to manage domain accounts, organize directory objects, delegate administrative authority, and structure network resources across a Windows 2000 domain.

Primary Purpose and Functionality

Introduced alongside the debut of Active Directory in Windows 2000 Server, the Active Directory Users and Computers snap-in (dsa.msc) provides the primary graphical user interface (GUI) for managing the directory service. Its chief objective is to allow systems administrators to manage directory objects—including users, groups, computers, printers, and shared folders—within a centralized interface.

Account Lifecycle Management

ADUC serves as the default management console for user and computer accounts throughout their lifecycle:

• User Accounts: Administrators use it to create, modify, disable, unlock, and delete domain user accounts. It also handles routine tasks such as resetting passwords and configuring logon hours or workstation restrictions.
• Computer Accounts: Workstations and member servers that join the Windows 2000 domain are registered and managed through ADUC. Administrators can reset secure channel passwords or manage pre-staged computer objects.
• Groups: The tool allows the creation and maintenance of both security and distribution groups across domain local, global, and universal scopes to streamline permissions and email distribution lists.

Hierarchical Organization with Organizational Units

A vital architectural feature of Windows 2000 Active Directory is the Organizational Unit (OU). ADUC provides the interface to create, nest, and structure OUs within a domain. By organizing users and computers into logical OUs—typically reflecting geographic locations, departments, or functional roles—administrators can design an intuitive directory structure that mirrors the organization.

Delegation of Administrative Control

Through the built-in Delegation of Control Wizard, ADUC enables the principle of least privilege. Instead of granting full Domain Admin privileges, senior administrators can delegate specific tasks—such as password resets or account creation within a designated OU—to local support staff or department managers.

Publishing Network Resources

ADUC enables administrators to publish shared resources directly into Active Directory. Printers and shared network folders can be listed as objects in the directory, allowing Windows 2000 clients to search for and locate resources based on specific criteria, such as physical location or paper capabilities, directly from their desktop interfaces.