Win8 Consumer Edition does not have to be online to install directly. Net 3.5 features

installed on the Windows8 consumer preview version feels very fast, there is not much problem in use, not bad. But when I need to install .Net 3.5, I will be two, and I have to be connected! And as far as my tragic speed is concerned, the progress of an hour can't go too much...
So is there a way to install this feature without having to update online?
The following we start:
First mount the Windows 8 consumer preview version of ISO (Win8 comes with it, of course, Rubik's virtual drive, UltraISO and so on, not much)
Then Right-click in the lower left corner of the Start menu (Win + X), select - Command Prompt (Admin) -
and enter the following command: dism.exe /online /enable-feature /featurename:NetFX3 /Source:F:\\ Sources\\sxs
(Note: Do not enter an error for a space, otherwise the command cannot be executed)
Note: The drive letter F here is determined according to the virtual drive letter you loaded ISO. My F is your It may be another drive letter, subject to change.
There is a picture with the truth, as shown below:

The installation is complete, we have to check if the installation is complete, let us restart the computer immediately.
Then enter the control panel - "Programs -" to enable or disable the Windows function, see the first item has been checked, the installation is successful.

Implementation principle:
In fact, the ISO of Win8 comes with the function of .Net 3.5 Framework, but it is necessary to update online directly through the control panel. It may be because of the system mechanism, Windows must You connect to the Update online installation. If your internet speed is a small water pipe or you don't want to update online, try this method.