Hi there, please take under consideration moving "using namespace EE;" directive from EsenthelEngine.h to stdafx.h to be more under user control.

I would like to reopen this problem, it can really be a pain sometimes.

You needn't move the directive itself, you could just do it like this:
So no changes to any old code need to be made, but still allows some control for the users (It can be specified as a -D flag to the compiler, for example).
There are a few ways users can work around this on their own, but they are all hacky and not future proof, and it's a really simple change on your end.

Thanks.