ADP to Webcast Fiscal 2007 Earnings Release Conference Call on July 31, 2007.

ROSELAND, N.J. -- Automatic Data Processing, Inc. (NYSE:ADP) is scheduled to release its financial results for the fiscal year ending June 30, 2007 before the opening of the New York Stock Exchange on Tuesday, July 31, 2007.

ADP also will be hosting a conference call at 8:30 a.m. EDT on July 31, 2007 to discuss the results for the year. Gary C. Butler, president & chief executive officer, Christopher R. Reidy, chief financial officer, and Elena S. Charles, vice president of investor relations, will be participating on the call.

Investors and interested participants are invited to listen to the conference call and view the accompanying slide presentation via live webcast. The webcast can be accessed through ADP's home page, www.adp.com, or ADP's Investor Relations home page, http://www.investquest.com/InvestQuest/a/adp/. In addition, the slide presentation will be available to download and print approximately 60 minutes before the webcast at ADP's Investor Relations home page. A replay of the webcast will be available for approximately two weeks after the event and can be accessed in the same manner as the live webcast.

ADP, with over $7 billion in revenues and more than 570,000 clients worldwide, is one of the largest providers of a broad range of premier, mission-critical, cost-effective transaction processing and information-based business solutions.