Place butter in a 10 inch glass pie plate.
Microwave 2 minutes or until melted.
Add flour, cookie crumbs, brown sugar, and coconut.
Mix until crumbly.
Microwave 3 to 5 minutes.
Stir twice during cooking.
Press mixture into bottom and sides of pie plate.
Cool.
Measure water in a 2 cup glass measuring cup.
Microwave 3 minutes 30 seconds or until water comes to a boil.
Place water, cream cheese and gelatin in a blender.
Mix at medium speed until well blended.
(Use electric mixer if blender is not available.) Stir in pineapple and refrigerate until thickened.
Fold in whipped cream and 1 cup mandarin orange slices.
Spoon into pie crust.
Refrigerate until set.