Mark Minasi, Directory Services MVP, is one of the world's leading Windows authorities. He teaches classes in two dozen countries and is a much sought-after speaker at conferences and industry gatherings. His firm, MR&D, has taught tens of thousands of people to design and run Windows networks. Mark has written more than 25 books for Sybex, including the market-leading Mastering Windows Server 2003 and The Complete PC Upgrade and Maintenance Guide.
Aidan Finn, MCSE, MVP in Virtual Machine: Systems Administration, is currently an IT infrastructure consultant in Ireland. He works with Hyper-V and Microsoft System Center as part of an advanced server deployment and management infrastructure. He is one of the selected members of the Microsoft Springboard Series Technical Expert Panel (STEP) Program and a member of the Microsoft System Center Influencer Program. He also leads the Windows User Group in Ireland. Patrick Lownds, MCSE, MCTS, and MVP in Virtual Machine, has been working in the IT industry since 1988. In recent years, he has worked with Citrix XenServer, VMware ESX, Microsoft Hyper-V, and a number of Microsoft System Center products. Patrick is the co-founder and co-contributor of the Microsoft Virtualization User Group in the United Kingdom and is a member of the Microsoft System Center Influencer Program.