ADP to Webcast Conference Call

Automatic Data Processing, Inc. (NYSE:ADP) announced today that it will hold its financial analyst conference on Monday, September 13, 2004 from 8:15 a.m. to 11:30 a.m. (EDT).

The conference call will focus primarily on ADP's Brokerage, Dealer and Claims Services businesses. The meeting will be offered live via webcast and may be accessed through the company website.

An audio replay will also be available at the company websites for approximately two weeks after the presentation.