Derek Melber is the technical evangelist for ManageEngine, a division of Zoho Corporation. As one of only a handful of Microsoft Group Policy MVPs, Derek helps Active Directory administrators, auditors, and security professionals understand the finer points of how to manage, audit, recover, and solve issues that occur in Active Directory and Group Policy. He educates IT professionals worldwide on Active Directory, Group Policy, and Security, and has authored over 15 books on Windows security and management. He's famous for his video shorts in which he offers quick, practical solutions for Active Directory management. For more information on ManageEngine, the real-time IT management company, please visit www.manageengine.com; follow the company blog, on Facebook and on Twitter.