clean your RO client by putting necessary files
you can do that by creating new folder then put your data.grf, rdata.grf, data.ini, bgm, AI, AI sakray,skin, system, data
for dll files
just put your ragexe_patched and open it. It will create an error saying your missing dlls, and etc, just put the necessary files to your RO folder based from the error created by ragexe_patched.exe
another files needed:
Mp3dec.asi
mssfast.m3d
opensetup.exe