ADMINISTAFF, INC. ANNOUNCES THIRD QUARTER CONFERENCE CALL

HOUSTON, TX – October 20, 2000 – Administaff, Inc., (NYSE: ASF) the leading Professional Employer Organization (PEO), will release its third quarter earnings prior to the open of the New York Stock Exchange on Wednesday, Nov. 1, 2000, and then host a conference call at 10 a.m. EST to discuss the results. Paul J. Sarvadi, president and chief executive officer, and Richard G. Rawson, executive vice president of administration and chief financial officer, will discuss various aspects of the third quarter financial report. They will also review current and future business factors, and will answer questions from investment analysts. Investors, analysts, media and other interested persons can access the call by dialing 888-481-9034. The call will also be webcast live at www.administaff.com and www.streetfusion.com. A replay of the conference call will be available at 888-836-6074, passcode 4639684, for one week after the call. The webcast will be archived for one month.

Administaff is a leading personnel management company that serves as a full-service human resources department for small and medium-sized businesses throughout the United States.