Help create launcher

[AdrienD]

Hello everybody ! I'm looking for helper too create a launcher .
I saw tutorial of Odin launcher, tryed with other launcher, but not work. I'm really not good with this and i want to understand how to create this.
If you can help me, please contact me at skype :)

Skype : adrien.delbecq1

Thanks :)


EDIT : I have an Account Login : Error, who can tell me how to fix this pls ? :o

[MentaL]