If you have two archives one of controlfiles and another of the database
rman NOCATALOG
CONNECT TARGET user/password@bd
SHUTDOWN IMMEDIATE
STARTUP NOMOUNT
RESTORE CONTROLFILE FROM 'D:\XXX\yyy.bk';
ALTER DATABASE MOUNT
-- execute this query and see where are the backuppieces stored
SELECT * FROM V$BACKUP_PIECE
--copy to that location the archive peice, and send the restore
restore database check readonly;
alter database open resetlogs;