[Solved] Enable net framework 3.5 on Windows 7

I want to enable net framework 3.5 on windows 7 by powershell but am unable to find any reference on the net. I know how to do it manually but want to include it in a script.

So I know for windows 8 is:

Code:

dism.exe /online /enable-feature /featurename:NetFX3 /Source:I:\Sources\sxs

which you can use the dvd as a source.

How do you do this on 7?

 

In understand. Thank you.