please read this README.TXT file ZIP file contains following 3 files. - mcert.pem - mpriv.pem - keypass.enc Copy these 3 files to directory [key/Cyworld014]. Merchant ID : Cyworld014 Key Password : 1111 Admin Password: 1111 please visit https://iniweb.inicis.com for your Merchant Administration. This site provides your payment transaction details and account details by calculation period. You can also log on this site using your Merchant ID(Cyworld014).