Olstad V. Microsoft Corp‪.‬

¶1 Gene L. Olstad (Olstad), suing individually and as class representative of all others similarly situated, appeals from a final order of the Circuit Court for Milwaukee County granting Microsoft Corporation's (Microsoft) motion for summary judgment and dismissing Olstad's action alleging that Microsoft employs monopolistic practices prohibited by Wis. Stat. § 133.03 (2001-02).*fn1 The circuit court dismissed Olstad's complaint because it found that Chapter 133 of the Wisconsin Statutes applies only to intrastate commerce. We reverse the circuit court's order because we conclude that Wisconsin's antitrust statutes may reach interstate commerce if (1) actionable conduct, such as the formation of a combination or conspiracy, occurred within this state, even if its effects are felt primarily outside Wisconsin; or (2) the conduct complained of "substantially affects" the people of Wisconsin and has impacts in this state, even if the illegal activity resulting in those impacts occurred predominantly or exclusively outside this state.