Since its original release, Microsoft's implementation of the lightweight directory access protocol (LDAP) for the Windows Server line of networking software has become one of the most popular directory service products in the world. Your guide to learning Active Directory the quick and easy way Whether you're new to Active Directory (AD) or a savvy system administrator looking to brush up on your skills, Active Directory for Dummies will steer you in the right direction. If you're involved with the design and support of Microsoft directory services and/or solutions, you're in the right place. This comprehensive guide starts by showing you the basics of AD, so you can utilize its structures to simplify your life and secure your digital environment.