In a microwave, melt butter and chocolate; stir until smooth. Cool slightly. In a large bowl, beat the eggs, sugar and vanilla. Stir in chocolate mixture. Combine flour and salt; gradually add to chocolate mixture. Fold in pecans.
Transfer to a greased 13x9-in. baking pan. Bake at 350° for 35-40 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
For frosting, in a microwave, melt baking chips; stir until smooth. Cool slightly. In a large bowl, beat cream cheese and butter until fluffy. Add the melted chips, sugars, vanilla and salt; beat until smooth. Stir in coconut and pecans. Spread over brownies. Store in the refrigerator.