Powershell3 & Win2012 - Enumerate list of Roles&Features.ps1

# Enumerate list of Win8 & Win2012 features and roles installed (and not installed but available)
get-WindowsFeature -name *

# TO install a particular feature (like IIS)
Install-WindowsFeature -Name Web-Server -IncludeAllSubFeature

# NOTE - Install-WindowsFeature is equivalent to and replaces Add-WindowsFeature, formerly
#        used to install roles, role services, and features in Windows 2008R2