KISSフォルダーのコピーでOK
レジストリに登録するのは下のバッチファイルを置いて実行
If the update.exe doesn’t detect your game automatically:
Download this registry fixer for your game, place it in the main game folder and run it (not with administrator rights):
CM: https://cdn.discordapp.com/attachments/546266076577660939/550933289095921675/set_install_directory.bat
COM: https://cdn.discordapp.com/attachments/546266076577660939/550933291583275028/set_install_directory_com3d2.bat