VAN KAMPEN UNIT TRUSTS, SERIES 815 TRUST AGREEMENT Dated: November 25, 2008 This Trust Agreement among Van Kampen Funds Inc., as Depositor, The Bank of New York Mellon, as Trustee, Van Kampen Asset Management, as Supervisor, sets forth certain...Trust Agreement • November 25th, 2008 • Van Kampen Unit Trusts Series 815
