The present invention relates to a method of achieving communication via a network with the aid of a wireless application protocol between a first application in a first computer unit and a second application in a second computer unit, wherein said first application is a Windows application. The acoustic device has a cone having an inner surface, and a support structure defining a volume. In some cases, the HMAC signature is a Server Message Block signature. The depth pixels may generate samples in response to the received light. Sensors, actuators, and data transmission devices may also be included. The laminations are then held in position by the insertion of a wedge 16.