In the third year in its three-year funding cycle, Project "At Your Service" offered bilingual instruction and supportive services to 200 Hispanic students at Park West High School in New York City. The ultimate goal of the program was to develop students' English proficiency and to prepare them to meet the requirements for high school graduation. Among the activities conducted under the program were curriculum materials development and adaptation; student supportive services in the form of guidance and academic counseling, home visits, and career orientation and planning; staff development workshops, lectures, conferences and courses; and outreach to parents. Quantitative analysis of student achievement indicates that, with few exceptions, program students performed well in English language, mathematics, social studies, science, and native language arts, and that their attendance rate was significantly higher than that of the total school population. (GC)