Non-US EQ2 installation

[Landiin]

I need some information from you guys.

1. What exactly is in the LP_REGION_??_?? directory?
2. Is the LP_REGION_??_?? directory a mirror file for file copy of the EverQuest II directory?
3. If the LP_REGION_??_?? directory is a mirror of the EverQUest II directory does the game run the .exe files in the LP_REGION_??_?? or the EverQUest II directory?
4. Why the frack did they do it this way for? lol

Thanks for any info you may be able to provide.