The Active Directory directory service provides single-logon capability and a central repository for information for your entire infrastructure, vastly simplifying user and computer management and providing superior access to networked resources.
Active Directory ensuring that it is one of the most flexible directory structures in the marketplace today. As directory-enabled applications become more prevalent, organizations can utilize the capabilities of Active Directory to manage the most complicated enterprise network environments. Internet data centers, extranet application deployments, large distributed branch office enterprises – the improvements provided by Windows Server 2008 simplify administration and increase performance and efficiency, making it a very versatile solution.Active Directory has been enhanced to reduce total cost of ownership (TCO) and operation within the enterprise. New features and enhancements have been provided at all levels of the product to extend versatility, simplify management, and increase dependability.