ADP Emerging Business Services Selects WebEx to Deliver Web-Based Training Seminars For Clients.

Business Editors/High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--May 29, 2001

Real-Time Training Workshops Help Clients Learn about Internet

Payroll Service, EasyPayNet(SM)

WebEx Communications, Inc. (Nasdaq:WEBX), the leader in real-time communications infrastructure for business meetings on the Web, today announced that is has signed Automatic Data Processing, Inc. (NYSE: ADP) as a new WebEx Meeting Center customer. ADP's Emerging Business Services division is using WebEx to provide real-time client training meetings for its new Internet payroll service EasyPayNet. The WebEx Meeting Center service allows users to share applications, presentations, documents, browsers, and desktops, with integrated voice and video, through a standard browser.

WebEx meetings are being used as part of the client training program for ADP's new Internet payroll service, EasyPayNet. As the world's largest provider of payroll services and human resource information systems, ADP offers a comprehensive range of services to over 450,000 employers worldwide. EasyPayNet is a secure, easy-to-use Internet solution for payroll processing, payroll tax filing, and HR administration.

"WebEx is well suited for our new client training. We show a variety of media types such as PDF files, presentation slides and web applications in the same setting and WebEx is the solution," said Dan Derosa, vice president of e-Business Marketing for ADP Emerging Business Services. "We use WebEx to hold interactive online training seminars with customers all over the country. WebEx allows us to walk customers through the service, demonstrate the site's tools and answer customer questions through a standard browser without requiring any technical setup. WebEx's real-time Web meetings are an easy, effective and efficient way for to train our clients nationwide."

"ADP is the world's leading provider of employer, brokerage, dealer, claims services and we are proud to have them as a new customer," said Jim Moise, vice president of sales for WebEx Communications. "WebEx's low cost of implementation and immediate business benefits can result in instant cost saving and significant ROI, making it the standard for real-time business meetings on the Web. WebEx meetings can help companies decrease costs, increase sales, and improve customer relations and training programs."

About WebEx Meeting Center

The WebEx Meeting Center service supports the entire range of data, voice and video communications to provide an online environment that simulates the full spontaneity and productivity of face-to-face meetings. All of WebEx's services are built on the WebEx interactive platform and are supported by WebEx's global communication network, ensuring scalability, reliability and predictability. WebEx's interactive communications services help its customers and partners increase their productivity and efficiency, differentiate and distinguish their product and service offerings, and enhance and diversify their revenues. Detailed information regarding all of WebEx's services is available at http://webex.com/home/services_business.html

About ADP

Automatic Data Processing, Inc. (NYSE:ADP) is one of the largest global providers of computerized transaction processing, data communications and information services, with more than $6 billion in revenues and 500,000 clients worldwide. ADP's Employer Services (ES) Division is a leading provider of integrated business administrative solutions that help clients efficiently manage their internal processes, allowing them to focus on core competencies. ADP Emerging Business Services division's offerings include both traditional and Internet-based outsourcing products and services, giving clients the ability to select from ADP's comprehensive range of World Class Service solutions. Services include: payroll, tax regulatory management, HRMS, benefits administration, time and labor management, retirement plan services, online recruiting, and pre-employment screening. For more information about ADP visit the company's Web site at www.adp.com.

About WebEx Communications, Inc.

Founded in 1996, WebEx Communications, Inc. (Nasdaq:WEBX) is the leader in Internet infrastructure for real-time business communications. WebEx provides Web-based carrier-class communication services using its multimedia switching platform deployed over a global network. WebEx's services enable end-users to share presentations, documents, applications, voice, and video spontaneously in a seamless environment. WebEx services are used across the enterprise in sales, support, training, marketing, engineering, and various other functions. With its modular framework and standards-based APIs, WebEx's real-time communications platform is the "dial-tone" for meetings on the Web. Please call toll free 877/ 932-3911 or visit http://www.webex.com for more information.

Editors should contact Colin Smith at Antenna Group 415/977-1912 or [e-mail]

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements may be identified by use of the terms anticipates, believes, continue, could, estimates, expects, intends, may, plans, potential, predicts, should or will, or the negative of those terms or similar expressions. These forward-looking statements are subject to significant risks and uncertainties. Actual results may differ materially from those described in such statements as a result of these risks and uncertainties. In particular, these forward looking statements include, but are not limited to, statements that the use of WebEx services can result in instant cost saving and significant ROI and that WebEx meetings can help companies decrease costs, increase sales, and improve customer relations and training programs. Factors which could contribute to risks and uncertainties include, but are not limited to, the failure of customers to utilize the WebEx service or integrate it successfully in their businesses practices, or the failure of customers to identify and implement ways to increase their revenues from the WebEx services and reduce their other expenses. A fuller discussion of the risks and uncertainties that could affect WebEx Communications, Inc. are more fully set forth in WebEx's filings with the Securities and Exchange Commission, including WebEx's 10-K filed on April 2, 2001, and 10-Q filed on May 15, 2001. WebEx Communications, Inc. assumes no obligation to update forward-looking information contained in this press release.