This is from the orginial district court and upheld by the appellate court, broken into key parts (now, if you can disprove any of this, please be sure to submit your post to Microsoft, their team of lawyers is unable to convince what is now the third court that they are right):
I. SECTION TWO OF THE SHERMAN ACT
A. Maintenance of Monopoly Power by Anticompetitive Means
Section 2 of the Sherman Act declares that it is unlawful for a person or firm to "monopolize . . . any part of the trade or commerce among the several States, or with foreign nations . . . ." 15 U.S.C. § 2. This language operates to limit the means by which a firm may lawfully either acquire or perpetuate monopoly power. Specifically, a firm violates § 2 if it attains or preserves monopoly power through anticompetitive acts. See United States v. Grinnell Corp., 384 U.S. 563, 570-71 (1966) ("The offense of monopoly power under § 2 of the Sherman Act has two elements: (1) the possession of monopoly power in the relevant market and (2) the willful acquisition or maintenance of that power as distinguished from growth or development as a consequence of a superior product, business acumen, or historic accident."); Eastman Kodak Co. v. Image Technical Services, Inc., 504 U.S. 451, 488 (1992) (Scalia, J., dissenting) ("Our § 2 monopolization doctrines are . . . directed to discrete situations in which a defendant's possession of substantial market power, combined with his exclusionary or anticompetitive behavior, threatens to defeat or forestall the corrective forces of competition and thereby sustain or extend the defendant's agglomeration of power.").
1. Monopoly Power
The threshold element of a § 2 monopolization offense being "the possession of monopoly power in the relevant market," Grinnell, 384 U.S. at 570
In this case, the plaintiffs postulated the relevant market as being the worldwide licensing of Intel-compatible PC operating systems. Whether this zone of commercial activity actually qualifies as a market, "monopolization of which may be illegal," depends on whether it includes all products "reasonably interchangeable by consumers for the same purposes
The Court has already found, based on the evidence in this record, that there are currently no products - and that there are not likely to be any in the near future - that a significant percentage of computer users worldwide could substitute for Intel-compatible PC operating systems without incurring substantial costs. Findings ¶¶ 18-29. The Court has further found that no firm not currently marketing Intel-compatible PC operating systems could start doing so in a way that would, within a reasonably short period of time, present a significant percentage of such consumers with a viable alternative to existing Intel-compatible PC operating systems. Id. ¶¶ 18, 30-32. From these facts, the Court has inferred that if a single firm or cartel controlled the licensing of all Intel-compatible PC operating systems worldwide, it could set the price of a license substantially above that which would be charged in a competitive market - and leave the price there for a significant period of time - without losing so many customers as to make the action unprofitable. Id. ¶ 18. This inference, in turn, has led the Court to find that the licensing of all Intel-compatible PC operating systems worldwide does in fact constitute the relevant market in the context of the plaintiffs' monopoly maintenance claim
The plaintiffs proved at trial that Microsoft possesses a dominant, persistent, and increasing share of the relevant market. Microsoft's share of the worldwide market for Intel-compatible PC operating systems currently exceeds ninety-five percent, and the firm's share would stand well above eighty percent even if the Mac OS were included in the market. Id. ¶ 35. The plaintiffs also proved that the applications barrier to entry protects Microsoft's dominant market share. Id. ¶¶ 36-52. This barrier ensures that no Intel-compatible PC operating system other than Windows can attract significant consumer demand, and the barrier would operate to the same effect even if Microsoft held its prices substantially above the competitive level for a protracted period of time. Id. Together, the proof of dominant market share and the existence of a substantial barrier to effective entry create the presumption that Microsoft enjoys monopoly power.
2. Maintenance of Monopoly Power by Anticompetitive Means
In a § 2 case, once it is proved that the defendant possesses monopoly power in a relevant market, liability for monopolization depends on a showing that the defendant used anticompetitive methods to achieve or maintain its position.
If the evidence reveals a significant exclusionary impact in the relevant market, the defendant's conduct will be labeled "anticompetitive" - and liability will attach - unless the defendant comes forward with specific, procompetitive business motivations that explain the full extent of its exclusionary conduct
If the defendant with monopoly power consciously antagonized its customers by making its products less attractive to them - or if it incurred other costs, such as large outlays of development capital and forfeited opportunities to derive revenue from it - with no prospect of compensation other than the erection or preservation of barriers against competition by equally efficient firms, the Court may deem the defendant's conduct "predatory."
In this case, Microsoft early on recognized middleware as the Trojan horse that, once having, in effect, infiltrated the applications barrier, could enable rival operating systems to enter the market for Intel-compatible PC operating systems unimpeded. Simply put, middleware threatened to demolish Microsoft's coveted monopoly power. Alerted to the threat, Microsoft strove over a period of approximately four years to prevent middleware technologies from fostering the development of enough full-featured, cross-platform applications to erode the applications barrier. In pursuit of this goal, Microsoft sought to convince developers to concentrate on Windows-specific APIs and ignore interfaces exposed by the two incarnations of middleware that posed the greatest threat, namely, Netscape's Navigator Web browser and Sun's implementation of the Java technology. Microsoft's campaign succeeded in preventing - for several years, and perhaps permanently - Navigator and Java from fulfilling their potential to open the market for Intel-compatible PC operating systems to competition on the merits. Findings ¶¶ 133, 378. Because Microsoft achieved this result through exclusionary acts that lacked procompetitive justification, the Court deems Microsoft's conduct the maintenance of monopoly power by anticompetitive means.
c. Microsoft's Conduct Taken As a Whole
In essence, Microsoft mounted a deliberate assault upon entrepreneurial efforts that, left to rise or fall on their own merits, could well have enabled the introduction of competition into the market for Intel-compatible PC operating systems.
While the evidence does not prove that they would have succeeded absent Microsoft's actions, it does reveal that Microsoft placed an oppressive thumb on the scale of competitive fortune, thereby effectively guaranteeing its continued dominance in the relevant market. More broadly, Microsoft's anticompetitive actions trammeled the competitive process through which the computer software industry generally stimulates innovation and conduces to the optimum benefit of consumers.
Viewing Microsoft's conduct as a whole also reinforces the conviction that it was predacious. Microsoft paid vast sums of money, and renounced many millions more in lost revenue every year, in order to induce firms to take actions that would help enhance Internet Explorer's share of browser usage at Navigator's expense. Id. ¶ 139. These outlays cannot be explained as subventions to maximize return from Internet Explorer. Microsoft has no intention of ever charging for licenses to use or distribute its browser. Id. ¶¶ 137-38. Moreover, neither the desire to bolster demand for Windows nor the prospect of ancillary revenues from Internet Explorer can explain the lengths to which Microsoft has gone. In fact, Microsoft has expended wealth and foresworn opportunities to realize more in a manner and to an extent that can only represent a rational investment if its purpose was to perpetuate the applications barrier to entry
Remember, this is written by a Reagan appointee. Judge Penfield Jackson was known for being very anti-government involvement in industry; and Microsoft cheered the fact that he was chosen to hear their case. 6 long years later, the Judge had come to see the awful truth.
The full document is here for anyone who wants to read it:
http://www.usdoj.gov/atr/cases/f4400/4469.htm