I saw this thing on microsoft.com that said if you log in as admin, download it there, and right-click/ share with [other user] then it would be able to run without having to type the password in every time.
Impossible
You kind of HAVE to have an account.
In maple story
Register at its own website.
www.nexon.net or www.maplestory.nexon.net
you type in your id or email then answer the Quastions.
No, only the game.
Make it on its own website.
I don't believe that's possible.
Make a new account
If you know your password, you can reset your PIN, without having to type in your old PIN. If you forget your password or pin you can answer your security question and you can get into your account.
Sadly I think you can't...
10 or 11 yrs old