Z:gnu-www-ja-ms-doj-tunney--b997b0-The District Court found that/en

The District Court found that the Defendant had illegally maintained a monopoly in the market for Intel-compatible PC operating systems. (Findings of Fact, November 19, 1999, &para;19.) The mechanism of that monopolization, the court found, was the attempt to establish exclusive control of &ldquo;application program interfaces&rdquo; (&ldquo;APIs&rdquo;) to which applications developers resort for operating system services, so as to prevent the possibility of &ldquo;cross-platform&rdquo; development threatening Defendant's operating systems monopoly. (Findings of Fact, &para;80 and passim.)