AdForce Gains Momentum In The High-Tech Industry; Sun Microsystems Plans to use AdForce for Centralized Ad Serving.

CUPERTINO, Calif.--(BUSINESS WIRE)--Sept. 23, 1999--

AdForce, Inc. (Nasdaq:ADFC), a leading provider of centralized, outsourced ad management and delivery services on the Internet, today announced an agreement with Sun Microsystems, a leading provider of enterprise hardware, software and services. Sun Microsystems plans to use Desktop AdForce 3.0 as a full service ad management solution to plan and schedule advertising campaigns, target consumers, manage inventory, deliver ads, and measure campaign effectiveness.

"AdForce is an all-inclusive service for industry giants such as Sun Microsystems," said Chuck Berger, CEO of AdForce. "AdForce's technology infrastructure allows Sun to run its core business and not worry about their online advertising. Our centralized system can handle Sun's rapidly growing volume."

"To keep our industry position strong and forward-looking, we are constantly deploying new campaigns to better serve our customers and partners," said Garry Hornbuckle, Director of Market Development and Developer Relations Program Operations of Sun Microsystems Inc. "To meet the demands of our customers and minimize our time spent on the backend, we decided to use AdForce's centralized ad serving solution."

About AdForce (www.adforce.com)

AdForce is "The Force in .com Marketing"(SM) and a leading provider of centralized advertising services, enabling online publishers, rep firms and advertisers to leverage the unique advantages of the Internet as the first fully interactive medium. Deploying advanced scalable technology and backed by robust data centers, the AdForce service delivers billions of impressions monthly for some of the Internet's most prominent advertisers. AdForce provides a comprehensive suite of products, which allow advertisers and publishers to target, deliver, measure and analyze Internet advertising programs for the best results. AdForce has strategic partnerships with America Online, Inc. and Experian (formerly Metromail). AdForce has offices in Cupertino, CA, Costa Mesa, CA, and New York, NY.

This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Act of 1934, as amended. These statements are subject to the "safe harbor" created by those sections and include, but are not limited to AdForce's expectation that Sun will use the Desktop AdForce 3.0 to plan and schedule its advertising campaigns, manage inventory, deliver ads, and measure campaign effectiveness, and AdForce's expectation that it will be able to handle Sun Microsystems' ad volume. Actual events could differ materially from those predicted in these forward-looking statements. Factors that could cause actual events or results to differ include, but are not limited to AdForce's ability to maintain the performance and reliability of its systems, its need to continue scaling its systems successfully and to add new features and functionality to meet market demands, contractual provisions permitting termination of the agreement, competitive pressures, continued consolidation in the industry affecting AdForce's customers or competitors, and other risks described in AdForce's Registration Statement on Form S-1, as amended, and Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission. AdForce undertakes no obligation to update forward-looking statements to reflect events or circumstances occurring after the date of such statements.