Darren Mar-Elia is president and CTO of SDM Software, a Group Policy solutions company. He has more than 30 years combined experience in IT and software development. He was senior director of product engineering at DesktopStandard (acquired by Microsoft), and he previously served as CTO for Windows management solutions at Quest Software. He was also a director of distributed systems at Charles Schwab & Co. and helped guide that company's use of Microsoft Windows technologies. Darren has written or contributed to 12 books on Windows management topics, is a Microsoft MVP for Group Policy, and is a contributing editor for Windows IT Pro. He also created the popular GPO Guy website for information and utilities related to Group Policy.