At the end of the 70-411 episode "Windows Deployment Services Pt. 2", Nate uses the DISM command:
dism /Image:c:\mount /Get-FeatureInfo /FeatureName:TelnetClient
and then says "Now that feature will be turned on in this wim file" before unmounting the image. All this does is show info about the selected feature.
The command to enable the feature, which is never actually shown in the episode, is:
dism /Image:c:\mount /Enable-Feature /FeatureName:TelnetClient /All
Might be worth adding to the show notes, was a little confusing!
(Also, the text in the command window was very hard to read in this episode).
Error in episode: 70-411 - Windows Deployment Services Pt. 2
yes i am doing 411 now and noticed that as well.
Sorry about that. I've added an errata to the notes section for that episode.