Windows PowerShell is not new technology. Windows PowerShell 4.0 ships in Windows 8.1 and in Windows Server 2012 R2, it has therefore been around for a while. Windows PowerShell is an essential admin tool designed specifically for Windows administration. By learning to use Windows PowerShell, network administrators quickly gain access to information from Windows Management Instrumentation, Active Directory and other essential sources of information. Additionally, Microsoft added Windows PowerShell support to the Common Criteria requirements for shipping enterprise applications. Therefore, to manage Microsoft Exchange, Azure, SQL Server, and others one needs to know and to understand how to use Windows PowerShell. In the networking world, this knowledge is also a requirement for managing DNS, DHCP, Network Adapters, and other components.