These are batch file scripts which rename your large textures to filenames unrecognized by Orbiter so you can choose which planets' textures you want to have unloaded (the planets you won't visit), still allowing Orbiter to set a big Max Patch Resolution globally. This approach allows to lessen load time and memory usage and you may be interested in it if you have equal or below 1 GB of RAM. Of course the files which were renamed can be named back to normal names, when you decide you want to visit a particular planet with its moons.