Len Fenster is the lead architect for .NET Development for Microsoft Consulting Service’s U.S. East Region. During his last eight years at Microsoft, he has focused on helping many enterprises create robust applications based on Microsoft technology. Most recently, Len has been working with the Microsoft patterns & practices team on the next version of Enterprise Library. Even before his career with Microsoft, Len led a global team of developers and architects that built distributed applications based on Microsoft technologies. Since the advent of .NET, Len has served as an enterprise architect for Microsoft Consulting Services and has leveraged his considerable experience to help many enterprises incorporate .NET into their own technology strategies. Len speaks on a regular basis to companies and at architecture forums about architecting solutions based on .NET and service oriented architecture.