Launch a downloaded jar

[vawnair]

Hey,

I would want to download a .jar from a website and then directly launch Minecraft and use it as a version. I don't want to keep it in a folder and just launch it instantly.

Can I do that? If not, can you add a feature or a code sample to do that?

Thanks

[AlphaBs]

it's impossible to launch version that does not exist in your pc. you should download your files into game directory