Somehow when I try to launch Maplekey.Exe i get "error code : -2147024809 (The parameter is incorrect)" this error? how to fix this reply ASAP!
Did you try to change the properties?
Right Click MapleKey.exe => Properties => compatibility => set to to another windows and give it a try.
make sure your antivirus is off
and close all your other task such as skype, internet, music, steam.
change compatibility to windows 7, run as administrator, check the box that says "Reduced Color Mode". This combination of settings works for me on windows 10.
The upcoming WZ update will provide a fix for this issue (Late reply)