The .NET Framework v2 or higher is required to use nlite.
ALSO: according to HERE, the tutorial does say .net is not required, the only solution would be to try it and see.
it is not hard to get rid of .net, if you want to install, then do so and then it can be removed from add/remove or you can download the #1 file from my onedrive and it will remove all .net from your pc:
https://onedrive.live.com/?cid=d7389b68b3a275ad