Exhibit 10.13 Complementary Software Program Developer Package Agreement Between: SAP Labs, Inc. 3475 Deer Creek Road Palo Alto, CA 94304, USA (hereinafter: SAP) and: Mediaplex, Inc. 131 Stuert St., 4th Floor San Francisco, CA 94105 (hereinafter:...Developer Package Agreement • October 29th, 1999 • Mediaplex Inc • Services-business services, nec • Pennsylvania
