Place butter in a 9-inch glass pie pan and microwave for 1-2 minutes, or until butter is melted. Add cookie crumbs and sugar and mix well.
Press crumbs firmly into the bottom and sides of the pie dish. Microwave 2-3 minutes, giving a half turn halfway through cooking. Set aside to cool.
For the filling, wash, hull and slice the strawberries. Place half of the strawberries in a microwave-safe bowl. Crush and mix them with cornstarch and water. Stir in lemon juice, salt and sugar.
Microwave on high for 6 minutes, stirring every minute. Cool slightly.
Pour remaining berries into the pie shell and cover with the cooked berry mixture. Refrigerate until set. Top with whipped cream.