Aerin Rebecca Lauder, a daughter of Mr. and Mrs. Ronald S. Lauder of New York, was married last evening to Eric Louis Zinterhofer, the son of Dr. and Mrs. Louis J. M. Zinterhofer of Rumson, N.J. Rabbi Peter J. Rubinstein performed the ceremony at the bride`s parent`s house in Wainscott, L.I. The couple graduated from the University of Pennsylvania, he cum laude. Mrs. Lauder Zinterhofer, 26, is the director of creative product development at Estee Lauder U.S.A. and Canada, a division of the cosmetics company in New York. Her father is the chairman of Estee Lauder International and Clinique Laboratories, also a Lauder company. Mr. Lauder was Ambassador to Austria during the Reagan Administration. He is also the chairman of the Museum of Modern Art. Her mother, Jo Carole Lauder, is the president of the museum`s international council. She is also a trustee of Mount Sinai Medical Center in New York and the vice chairwoman of Friends of Art and Preservation in Embassies in Washington. The bride is a granddaughter of Estee Lauder of New York and the late Joseph H. Lauder, who together founded the family business. Mr. Zinterhofer, 24, is a financial analyst at Morgan Stanley & Company, the New York investment bank. He has been accepted for the M.B.A. program at Harvard University, beginning in September. His mother, Susan A. Zinterhofer, owns Counter Corporation in Rumson, an investment consultancy that specializes in media businesses. His father is the chairman of the pathology department at Monmouth Medical Center in Long Branch, N.J.