To install double click the installer and then follow the instructions on screen, when you get to the place were it asks were you want it installed make SURE it's the correct directory,(C:\Program Files\Microsoft Games\Age of Empires II).
To uninstall go to C:\Program Files\Microsoft Games\Age of Empires II, you will see a folder labeled original dll, copy this folder and then double click the uninstaller.
This is a Lord of the Rings patch that renames almost all of them, excluding buildings.
I will tell how to do this if you want.
I was quite happy to see another LOTR mod because I am quite a fan of them. I hoped this mod would be another METC but, alas, I was wrong.
This mod is nothing more than a language.dll edit. There was no graphic or stat changes only name changes. I do believe that anyone deserves at least a 2.5 if they are willing to painstakingly trudge through a language.dll file and change all of the unit names to something else, however because this file is riddled with spelling errors (glimli), I have chosen to give it a 2.