Combine pretzels, sugar and melted butter. Press firmly into bottom of 8" spring form pan. Chill.
To make filling:
Combine condensed milk, lime juice, tequila and orange liquor.
Beat until smooth. Add strawberries, beat at low speed until well-blended. Fold in whipping cream. Pour over crust, freeze 4 - 6 hours or until firm. Let stand at room temperature 15 minutes before serving.