Minecraft Launcher Keinett Launcher Original
The Minecraft launcher 1.10 is the login and downloader front-end to the stand-alone client. It is responsible for downloading the main Java packages, including minecraft.jar and LWJGL, which holds the code and resources of the game such as textures. It also acts somewhat like a basic and easily bypassable copy-restriction by forcing the user to login to a paid account when running for the first time. It is possible to use the launcher to run versions of Minecraft from any era, however some versions are still not included on the launcher, such as Indev, Minecraft 2.0 and any of the Beta 1.9 pre-releases.
Every time the launcher is executed, it checks a specific directory where Minecraft stores its files called .minecraft. It checks a file called “launcher_profiles.json” for login credentials. If the file does not exist, is corrupt, or no user is logged in, the user must login with a valid premium account, otherwise the user will be directed to play the Demo version or purchase the game.
When logging in, the launcher will first try to verify the login. If a valid “launcher_profiles.json” file exists but there is no Internet connection, the launcher will offer a “Play offline” mode if a player was logged in when it was last closed. If the connection is successful, the launcher will then, depending on profile options, compare the latest version in the latest “versions” directory to the latest version reported by the server. If the selected version does not exist or the latest installed version is outdated when “Use latest version” is selected in the profile, the launcher will download all Minecraft components and Java binary files. It will also synchronize everything in the Assets folder (see Resource pack)
Finally, upon a successful update or installation, the launcher will execute “minecraft.jar” (via “javaw.exe”, Oracle’s Java Virtual Machine executable.) It is possible however for there to be missing “.jar” files, in which case the launcher will attempt to replace the missing files automatically but will stop if there is no connection.
Currently, Minecraft launcher supports only English. Users cannot select their preferred language.