What makes the big difference in capabilities between Windows PowerShell 4.0 installed on Windows 7 or Windows 8.1 is not the difference in the capability of Windows PowerShell 4.0. The package provides the same abilities. The difference is the modules introduced with Windows 8 and expanded in Windows 8.1. To find out the commands that a module provides, I use the Get-Command cmdlet and specify the name of a particular module. In this example, I look at the commands provided by the NetAdapter.