All versions from Little Fighter EMPIRE can be installed in the same way. In the download, you'll find a setup file. Go to C:/Program Files/LittleFighter2/ and create a copy of an original version of LF2 (LF2v1.9 or LF2v1.9c only!). Then, rename it to the name of the version (look at the "Installation.txt" file or the setup file to get the name of the folder). After you rename the folder, you can start the installation. To save space, all files which are already in the original version are left out. There are some versions in which most of the files are new. In these cases, you don't have to install over the original version (Seed-LF2, LF2-NS).