This Program should Allow you to dual client in any server, since this came from Codemasters patch...
For 64 bit users run it as administrator.....
TUT:
1.) First is Run it as administrator...
2.) select Brazil
3.) get the path of the client ur gonna patch
4.) poof Dual client working
P.S This will detect a virus, You need to turn off ur Anti Virus First..
This doesn't Ensure everyone to be able to dual client since some of the servers have block it...