1.) Making an executable is pretty simple. Choose your preferred language, write a tool, compile it -> Done. I guess you don't even know which language you want.
List of programming languages - Wikipedia, the free encyclopedia.
2.) I won't even try to help you. Stop sleeping on your "." Key and get a proper Topicname like "Need help for creating a launcher/ Lvl up Helper"
3.) Lvl up helper scripts where posted several times. Being a serveradmin = work. Start working now and search it yourself.
4.) Noone will just programm a launcher for you. You should start on your own and return with problems. Or just pay some money to someone coding it for you.
