Found it :
"C:\Program Files (x86)\Nexon\Nexon Launcher\nexon_launcher.exe" nxl://launch/10100 -> where 10100 is the game ID.
I had to reinstall MS and it created a shortcut on the desktop with this path.
I'm now trying to find a way to close ms in command line.
Taskkill Maplestory.exe is denied by window so I cant use that...
True, but "your pet, android, and anything else following you" also don't have to be summoned every time you log on either, while familiars do. Or are you suggesting that's also a "bug"?
I think you are right.
Pet follow you around but you have to summun them every time it goes back home from hunger which, when you think about it, is like vitality from familiar. My opinion is than familiar monster should work on a similar mechanic : when you log in, there is no reason you shouldnt have your previous familiar already summuned with his remaining vitality (or full, depend on how much time have pass) and when you go into Fritto eagle hunting it should still be there after like your pet.
The reason on how work that mechanic probably lie on how nexon designed familiar monster. They are probably already aware of this but it would take them too much time to fix it for the inconvenient it cause.
I'm really sorry for all the typos, english is not my main language.