This article reports on the treatment of an 8-year-old boy who fulfilled the DSM-IV-TR diagnostic criteria for Asperger disorder (APA, 2000). The boy had poor concentration, disobedience and social skills deficits along with problem behaviors. Training in social skills was used together with a multiple-setting intervention for other contexts (parent training and teacher’s cooperation in the school context). The boy’s parents used a token economy in the family context and were advised to carry out home-based activities intended to facilitate generalization. After treatment he achieved the planned objectives. His improvements were observed by his teacher and parents and were reflected in test results (“Multifactorial Childhood Adaption Evaluation Test” and “Assertive Behavior Scale for Children”). In addition, there was generalization to other behaviors that were not directly treated, as shown by the disappearance of aggressive behaviors. Therefore, this behavioral intervention demonstrated its effectiveness.