Prepare cake mix as directed. Cool and cut into 4 layers. Filling: bring to boil: Milk, sugar and margarine. Boil for 3 min. Remove from heat and add marshmellows. Stir in coconut. Mix well and put between layers. Icing: Mix margarine and cream cheese. Add sugar and cocoa a little at a time. Spread on top of cake. Store in refrigerator.
Copied from the files of Dianne Waller