native means that every text, menu, etc. in your final WinBuilder-created PE is taken from the CD (in your native language) which you have defined as source.
This is different from other PE creating software, which usually uses predefined hives, predefined ressources etc.
As a result of this, your PE in the best case looks (usually) English. In worst cases, you also have an English keyboard, English time and date format, etc ...
And for non-English people that is not very comfortable ...
Ex I usually use as the last two name characters of programs I develop. It is just a small reminder on my logo.
nativeEX is not thought to be a "Production" project wich e.g. delivers a PE with rescue apps etc.
It is thought to deliver the basic functionalities (with some fundamental apps) which can be expanded to a separate project.
One of the most famous and sophisticated child projects is LiveXP
Additionally nativeEX always is 'up to date' due to WinBuilder. It uses the latest functionality of the latest WinBuilder version.
Not-yet-published WinBuilder programs can be usually found at http://nativeex.exec-se.de/Downloads/Test/WinBuilder/WinBuilder.zip
But in several weeks you can see here new projects "nativeEx_X_PEEasy" and "nativeEx_7_PEEasy".
WinBuilder download servers: