New Post: Prism 4.1: Downloadpackage and Unity

No answer so far!?
So, let me try it again. :-)

Why does the Unity-Standardpackage at \Prism\bin\Desktop not contain the dll Unity.Configuration.

Instead, this dll is contained in the folder \Prism\Lib\Desktop\Unity.

And what is the purpose of that ..Lib.. directory?

Thanks in advance