INSTALLATION
Extract to or copy to your main Skyrim folder which contains the executable
C:\Program Files (x86)\Steam\steamapps\common\skyrim for Window 7 users
 (replace C to hard drive that your steam is installed to)

UNINSTALLTION
Remove all masser_, moonshadow, skymoonfull and skystars DDS files from
C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Textures\Sky