Variable Name: WindowsSource Value: Path to your windows source files Click Add and enter following three variables and values hitting OK after each entry:.Open the Group Policy Management Console and edit your Deploy/OS GPO:.Net 3.51 will be installed on your client machines by the time you log in the first time. With Specops Deploy/OS, you are able to enable this feature through the Custom MDT Properties of your Deploy/OS group policy object.
Administrators will need to enable this feature manually. Net applications.Net 3.51 is not installed natively as a part of the OS. Net framework must be installed on your client machine in order to run. NET is a programming framework created by Microsoft that developers can use to easily create applications.Net applications are commonly used by desktop and web services.