In a microwave safe bowl, place unwrapped caramels and 1/4 cup whipping cream. Place in microwave & heat on high for 2-3 minutes, stopping & stirring well every 30 seconds, until mixture is melted and smooth. Sprinkle in salt then add chopped pecans. Stir and spread evenly over the Oreo crust.
To toast pecans: Preheat oven to 350 degrees. Place pecans on a cookie sheet that has been sprayed with nonstick cooking spray. Bake for 5 minutes or until they become aromatic. Watch carefully as they can burn fairly easily.