Combine crumbs and margarine; press onto bottom of a 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 of pan. Chill.
Top cheesecake with pie filling and whipped topping just before serving. Spoon pie filling to within 1 1/2 inches of edge of cheesecake. About every three inches around the edge, place a dollop of whipped cream.
Source: E-Cookbooks.net