so 2 of my friends have 64 bit systems one vista one windows 7, and when they download the client it doesnt work, when you open it in properties it just says file it doesnt actually say application or (.exe)

As i said in shoutbox, This game is 100% operable on a 64-bit system. I'm playing on a win 7 64 bit system. And i installed the game perfectly fine. Soon as you / your friends download the client, just double click it.

ok well whatever the situation was it was downloading as an unknown file type and not an application file, needed to be renamed and it was good

Be sure u downloaded the client from MAXKO panel
Im also using 64 bit. Windows 7
Install it correctly.
Let the launcher install all patches.

are you can install it? If cant go rename and write maxko.exe than try run it. Or you need run with administrator acc