Enable NetFX3 in Windows Server 2012

C:\Users\Administrator>dism.exe /online /enable-feature /featurename:NetFX3Serve
rFeatures /Source:e:\sources\sxs /LimitAccess
Deployment Image Servicing and Management tool
Version: 6.2.9200.16384
Image Version: 6.2.9200.16384
Enabling feature(s)
[==========================100.0%==========================]
The operation completed successfully.
C:\Users\Administrator>dism.exe /online /enable-feature /featurename:NetFX3 /Sou
rce:e:\sources\sxs /LimitAccess
Deployment Image Servicing and Management tool
Version: 6.2.9200.16384
Image Version: 6.2.9200.16384
Enabling feature(s)
[==========================100.0%==========================]
The operation completed successfully.