Microsoft wanted to show software sales staff that Windows breaks down the walls in customers’ lives. So they showed them what that felt like by putting the letter in a concrete envelope, complete with a hammer to smash it open. The letter invited them to join a sales promotion where they could win a trip to where the Berlin Wall used to be.
The Print Ad titled Concrete Envelope was done by Y&R Auckland NZ advertising agency for brand: Microsoft Windows in New Zealand. It was released in the Aug 2009.