Hello Everyone, I'm new to here. I just made an account here. I need a big help, please tell me how to run this game. I downloaded the game from this website: http://dbmmo.com/download .
And now after downloading it, when I installed and tried to play it, its not running. The launcher is not responding and the application DBO.exe when i double click it says "Wrong Service Information". Please help me you guys. I know someone can do. Please DO. It will be a huge favor. Please Respond Anybody.

This error appears only for the Korean Version, as you need to login via the web browser, you will need to make an account. I believe dbmmo still has the old KR download from like 3 years ago.
Also to be honest you are better off by making either a Taiwan/Hong Kong version dbo account. As they do not require a Social Security Number.

Korean version account creation :- http://www.dbocom.com/forum/showthread.php?t=5839
Taiwan version account creation :- http://www.dbocom.com/forum/showthread.php?t=13629
Hong Kong version account creation :- http://www.dbocom.com/forum/showthread.php?t=24335

After creating the account you will still need to update your client.

Korean version download :- http://www.dbocom.com/forum/showthread.php?t=4411
Taiwan version download :- http://www.dbocom.com/forum/showthread.php?t=5845
Hong Kong version download :- http://www.dbocom.com/forum/showthread.php?t=18035

Please search the forums next time.