Combine crumbs and margarine; press onto bottom of 9 inch springform pan. Bake at 350 degrees F for 10 minutes.

Combine cream cheese and sugar, mixing at medium speed on electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Blend in chocolate and extract; pour over crust. Bake at 350 degrees F for 45 minutes. Loosen cake from rim of pan; cool before removing rim og pan. Chill.

Top cheesecake with pie filling and whipped topping just before serving. 10 to 12 servings.