ADP To Webcast Financial Analyst Conference on March 14, 2006.

ROSELAND, N.J. -- Automatic Data Processing, Inc. (NYSE:ADP) announced today that it will hold its next financial analyst conference on Tuesday, March 14, 2006 from 8:45 a.m. to 11:30 a.m. (EST). Senior management will provide an update on ADP's core businesses and will focus on strategic growth initiatives in Employer Services. Additional conference details will be provided at a later date. The conference will be offered live via webcast and may be accessed through www.adp.com. An audio replay will also be available at www.adp.com for approximately two weeks after the presentation.

ADP, with $8.5 billion in revenues and approximately 590,000 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.