Excerpts from:   Microsoft Trial Findings of Fact

Points especially relevant to our class have been bolded.

               UNITED STATES DISTRICT COURT
               FOR THE DISTRICT OF COLUMBIA
        ____________________________________

        Civil Action No. 98-1232 (TPJ)
        UNITED STATES OF AMERICA,
        Plaintiff,
        v.
        MICROSOFT CORPORATION,
        Defendant.

        ____________________________________

        Civil Action No. 98-1233 (TPJ)
        STATE OF NEW YORK, ex rel.
        Attorney General ELIOT SPITZER, et al.,
        Plaintiffs and Counterclaim-Defendants,
        v.
        MICROSOFT CORPORATION,
        Defendant and Counterclaim-Plaintiff.
        ____________________________________

                     FINDINGS OF FACT

        These consolidated civil antitrust actions alleging
        violations of the Sherman Act, SSSS 1 and 2, and
        various state statutes by the defendant Microsoft
        Corporation, were tried to the Court, sitting without a
        jury, between October 19, 1998, and June 24, 1999.
        The Court has considered the record evidence
        submitted by the parties, made determinations as to its
        relevancy and materiality, assessed the credibility of
        the testimony of the witnesses, both written and oral,
        and ascertained for its purposes the probative
        significance of the documentary and visual evidence
        presented. Upon the record before the Court as of July
        28, 1999, at the close of the admission of evidence,
        pursuant to FED. R. CIV. P. 52(a), the Court finds the
        following facts to have been proved by a
        preponderance of the evidence. The Court shall state
        the conclusions of law to be drawn therefrom in a
        separate Memorandum and Order to be filed in due
        course.

        I. BACKGROUND

        1. A "personal computer" ("PC") is a digital
        information processing device designed for use by one
        person at a time. A typical PC consists of central
        processing components (e.g., a microprocessor and
        main memory) and mass data storage (such as a hard
        disk). A typical PC system consists of a PC, certain
        peripheral input/output devices (including a monitor, a
        keyboard, a mouse, and a printer), and an operating
        system. PC systems, which include desktop and laptop
        models, can be distinguished from more powerful,
        more expensive computer systems known as "servers,"
        which are designed to provide data, services, and
        functionality through a digital network to multiple
        users.

        2. An "operating system" is a software program that
        controls the allocation and use of computer resources
        (such as central processing unit time, main memory
        space, disk space, and input/output channels). The
        operating system also supports the functions of
        software programs, called "applications," that perform
        specific user-oriented tasks. The operating system
        supports the functions of applications by exposing
        interfaces, called "application programming
        interfaces," or "APIs." These are synapses at which the
        developer of an application can connect to invoke
        pre-fabricated blocks of code in the operating system.
        These blocks of code in turn  perform crucial tasks, such as displaying text on the
        computer screen. Because it supports applications
        while interacting more closely with the PC system's
        hardware, the operating system is said to serve as a
        "platform."

        3. An Intel-compatible PC is one designed to function
        with Intel's 80x86/Pentium families of microprocessors
        or with compatible microprocessors manufactured by
        Intel or by other firms.

        4. An operating system designed to run on an
        Intel-compatible PC will not function on a
        non-Intel-compatible PC, nor will an operating system
        designed for a non-Intel-compatible PC function on an
        Intel-compatible one. Similarly, an application that
        relies on APIs specific to one operating system will
        not, generally speaking, function on another operating
        system unless it is first adapted, or "ported," to the
        APIs of the other operating system.

        5. Defendant Microsoft Corporation is organized under
        the laws of the State of Washington, and its
        headquarters are situated in Redmond, Washington.
        Since its inception, Microsoft has focused primarily on
        developing software and licensing it to various
        purchasers.

        6. In 1981, Microsoft released the first version of its
        Microsoft Disk Operating System, commonly known as
        "MS-DOS." The system had a character-based user
        interface that required the user to type specific
        instructions at a command prompt in order to perform
        tasks such as launching applications and copying files.
        When the International Business Machines Corporation
        ("IBM") selected MS-DOS for pre-installation on its
        first generation of PCs, Microsoft's product became the
        predominant operating system sold for Intel-compatible
        PCs.

        7. In 1985, Microsoft began shipping a software
        package called Windows. The product included a
        graphical user interface, which enabled users to
        perform tasks by selecting icons and words on the
        screen using a mouse. Although originally just a
        user-interface, or "shell," sitting on top of MS-DOS,
        Windows took on more operating-system functionality
        over time.

        8. In 1995, Microsoft introduced a software package
        called Windows 95, which announced itself as the first
        operating system for Intel-compatible PCs that
        exhibited the same sort of integrated features as the
        Mac OS running PCs manufactured by Apple Computer,
        Inc. ("Apple"). Windows 95 enjoyed unprecedented
        popularity with consumers, and in June 1998, Microsoft
        released its successor, Windows 98.

        9. Microsoft is the leading supplier of operating
        systems for PCs. The company transacts business in all
        fifty of the United States and in most countries around
        the world.

        10. Microsoft licenses copies of its software programs
        directly to consumers. The largest part of its MS-DOS
        and Windows sales, however, consists of licensing the
        products to manufacturers of PCs (known as "original
        equipment manufacturers" or "OEMs"), such as the
        IBM PC Company and the Compaq Computer
        Corporation ("Compaq"). An OEM typically installs a
        copy of Windows onto one of its PCs before selling the
        package to a consumer under a single price.

        11. The Internet is a global electronic network,
        consisting of smaller, interconnected networks, which
        allows millions of computers to exchange information
        over telephone wires, dedicated data cables, and
        wireless links. The Internet links PCs by means of
        servers, which run specialized operating systems and
        applications designed for servicing a network
        environment.

        12. The World Wide Web ("the Web") is a massive
        collection of digital information resources stored on
        servers throughout the Internet. These resources are
        typically provided in the form of hypertext documents,
        commonly referred to as "Web pages," that may
        incorporate any combination of text, graphics, audio
        and video content, software programs, and other data.
        A user of a computer connected to the Internet can
        publish a page on the Web simply by copying it into a
        specially designated, publicly accessible directory on a
        Web server. Some Web resources are in the form of
        applications that provide functionality through a user's
        PC system but actually execute on a server.

        13. Internet content providers ("ICPs") are the
        individuals and organizations that have established a
        presence, or "site," on the Web by publishing a
        collection of Web pages. Most Web pages are in the
        form of "hypertext"; that is, they contain annotated
        references, or "hyperlinks," to other Web pages.
        Hyperlinks can be used as cross-references within a
        single document, between documents on the same site,
        or between documents on different sites.

        14. Typically, one page on each Web site is the "home
        page," or the first access point to the site. The home
        page is usually a hypertext document that presents an
        overview of the site and hyperlinks to the other pages
        comprising the site.

        15. PCs typically connect to the Internet through the
        services of Internet access providers ("IAPs"), which
        generally charge subscription fees to their customers in
        the United States. There are two types of IAPs. Online
        services ("OLSs") such as America Online ("AOL"),
        Prodigy, and the Microsoft Network ("MSN") offer, in
        addition to Internet access, various services and an
        array of proprietary content. Internet service providers
        ("ISPs") such as MindSpring and Netcom, on the other
        hand, offer few services apart from Internet access and
        relatively little of their own content.

        16. A "Web client" is software that, when running on a
        computer connected to the Internet, sends information to
        and receives information from Web servers throughout
        the Internet. Web clients and servers transfer data using
        a standard known as the Hypertext Transfer Protocol
        ("HTTP"). A "Web browser" is a type of Web client
        that enables a user to select, retrieve, and perceive
        resources on the Web. In particular, Web browsers
        provide a way for a user to view hypertext documents
        and follow the hyperlinks that connect them, typically
        by moving the cursor over a link and depressing the
        mouse button.

        17. Although certain Web browsers provided graphical
        user interfaces as far back as 1993, the first
        widely-popular graphical browser distributed for
        profit, called Navigator, was brought to market by the
        Netscape Communications Corporation in December
        1994. Microsoft introduced its browser, called Internet
        Explorer, in July 1995.

        II. THE RELEVANT MARKET

        18. Currently there are no products, nor are there likely
        to be any in the near future, that a significant percentage
        of consumers world-wide could substitute for
        Intel-compatible PC operating systems without
        incurring substantial costs. Furthermore, no firm that
        does not currently market 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 consumers with a
        viable alternative to existing Intel-compatible PC
        operating systems. It follows that, if one firm controlled
        the licensing of all Intel-compatible PC operating
        systems world-wide, 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.
        Therefore, in determining the level of Microsoft's
        market power, the relevant market is the licensing of all
        Intel-compatible PC operating systems world-wide.

        A. Demand Substitutability

        1. Server Operating Systems

        19. Consumers could not turn from Intel-compatible PC
        operating systems to Intel-compatible server operating
        systems without incurring substantial costs, since the
        latter type of system is sold at a significantly higher
        price than the former. A consumer intent on acquiring a
        server operating system would also have to buy a
        computer of substantially greater power and price than
        an Intel-compatible PC, because server operating
        systems generally cannot function properly on PC
        hardware. The price of an Intel-compatible PC
        operating system accounts for only a very small
        percentage of the price of an Intel-compatible PC
        system. Thus, even a substantial increase in the price of
        an Intel-compatible PC operating system above the
        competitive level would result in only a trivial increase
        in the price of an Intel-compatible PC system. Very few
        consumers would purchase expensive servers in
        response to a trivial increase in the price of an
        Intel-compatible PC system. Furthermore, a consumer
        would not obtain a satisfactory substitute for an
        Intel-compatible PC operating system even if he
        purchased a server, since server operating systems lack
        the features -- and support for the breadth of
        applications -- that induce users to purchase
        Intel-compatible PC operating systems.

        2. Non-Intel-Compatible PC Operating Systems

        20. Since only Intel-compatible PC operating systems
        will work with Intel-compatible PCs, a consumer
        cannot opt for a non-Intel-compatible PC operating
        system without obtaining a non-Intel-compatible PC.
        Thus, for consumers who already own an
        Intel-compatible PC system, the cost of switching to a
        non-Intel compatible PC operating system includes the
        price of not only a new operating system, but also a
        new PC and new peripheral devices. It also includes
        the effort of learning to use the new system, the cost of
        acquiring a new set of compatible applications, and the
        work of replacing files and documents that were
        associated with the old applications. Very few
        consumers would incur these costs in response to the
        trivial increase in the price of an Intel-compatible PC
        system that would result from even a substantial
        increase in the price of an Intel-compatible PC
        operating system. For example, users of
        Intel-compatible PC operating systems would not
        switch in large numbers to the Mac OS in response to
        even a substantial, sustained increase in the price of an
        Intel-compatible PC operating system.

        21. The response to a price increase would be
        somewhat greater among consumers buying their first
        PC system, because they would not have already
        invested time and money in an Intel-compatible PC
        system and a set of compatible applications. Apple
        does not license the Mac OS separately from its PC
        hardware, however, and the package of hardware and
        software comprising an Apple PC system is priced
        substantially higher than the average price of an
        Intel-compatible PC system. Furthermore, consumer
        demand for Apple PC systems suffers on account of the
        relative dearth of applications written to run on the
        Mac OS. It is unlikely, then, that a firm controlling the
        licensing of all Intel-compatible PC operating systems
        would lose so many new PC users to Apple as the
        result of a substantial, enduring price increase as to
        make the action unprofitable. It is therefore proper to
        define a relevant market that excludes the Mac OS. In
        any event, as Section III of these findings demonstrates,
        including the Mac OS in the relevant market would not
        alter the Court's conclusion as to the level of
        Microsoft's market power.

        3. Information Appliances

        22. No operating system designed for a hand-held
        computer, a "smart" wireless telephone, a television
        set-top box, or a game console is capable of performing
        as an adequate operating system for an Intel-compatible
        PC. Therefore, in order to adopt a substitute for the
        Intel-compatible PC operating system from the realm of
        "information appliances," a consumer must acquire one
        or more of these devices in lieu of an Intel-compatible
        PC system.

        23. It is possible that, within the next few years, those
        consumers who otherwise would use an
        Intel-compatible PC system solely for storing addresses
        and schedules, for sending and receiving E-mail, for
        browsing the Web, and for playing video games might
        be able to choose a complementary set of information
        appliances over an Intel-compatible PC system without
        incurring substantial costs. To the extent this
        substitution occurs, though, it will be the result of
        innovation by the producers of information appliances,
        and it will occur even if Intel-compatible PC operating
        systems are priced at the same level that they would be
        in a competitive market. More importantly, while some
        consumers may decide to make do with one or more
        information appliances in place of an Intel-compatible
        PC system, the number of these consumers will, for the
        foreseeable future, remain small in comparison to the
        number of consumers deciding that they still need an
        Intel-compatible PC system. One reason for this is the
        fact that no single type of information appliance, nor
        even all types in the aggregate, provides all of the
        features that most consumers have come to rely on in
        their PC systems and in the applications that run on
        them. Thus, most of those who buy information
        appliances will do so in addition to, rather than instead
        of, buying an Intel-compatible PC system. Not
        surprisingly, then, sales of PC systems are not expected
        to suffer on account of the growing consumer interest in
        information appliances. It follows that, for the
        foreseeable future, a firm controlling the licensing of
        all Intel-compatible PC operating systems could set
        prices substantially above competitive levels without
        losing an unacceptable amount of business to
        information appliances.

        4. Network Computers

        24. A network computer system (sometimes called a
        "thin client") typically contains central processing
        components with basic capabilities, certain key
        peripheral devices (such as a monitor, a keyboard, and
        a mouse), an operating system, and a browser. The
        system contains no mass storage, however, and it
        processes little if any data locally. Instead, the system
        receives processed data and software as needed from a
        server across a network. A network computer system
        lacks the hardware resources to support an
        Intel-compatible PC operating system. It follows that
        software applications written to run on a specific
        Intel-compatible PC operating system will not run on a
        network computer. Network computers can run
        applications residing on a designated server, however.
        Moreover, a network computer system typically can run
        applications residing on other servers, so long as those
        applications are accessible through Web sites. The
        ability to run server-based applications is not exclusive
        to network computer systems, however. Generally
        speaking, any PC system equipped with a browser and
        an Internet connection is capable of accessing
        applications hosted through Web sites.

        25. Since the network computing model relies heavily
        on the processing power and memory of servers, the
        requirements for the user's hardware (and thus the price
        of that hardware) are low relative to those of an
        Intel-compatible PC system. Still, a user who already
        owns a relatively expensive Intel-compatible PC
        system is not likely to abandon the investment and
        acquire less powerful hardware just because one of the
        least expensive components of his PC system -- the
        operating system -- is substantially more expensive than
        it would be under competitive conditions. Just as does
        the Mac OS, the network computing model presents a
        somewhat more attractive alternative to the first-time
        computer buyer. But as in the case where a prospective
        purchaser is considering acquiring the Apple
        alternative, a new buyer considering the network
        computing model must choose between types of
        computer systems. If the consumer opts for the less
        expensive hardware of the network computer, that
        hardware will not support an Intel-compatible PC
        operating system; and if the new buyer opts for the
        more expensive hardware of an Intel-compatible PC, an
        Intel-compatible PC operating system will almost
        certainly come pre-installed (and in any event represent
        very little additional cost relative to the price of the
        hardware).

        26. Only a few firms currently market network
        computer systems, and the systems have yet to attract
        substantial consumer demand. In part, this is because
        PC systems, which can store and process data locally
        as well as communicate with a server, have decreased
        so much in price as to call into question the value
        proposition of buying a network computer system. This
        fact would not change if the price of an
        Intel-compatible PC operating system rose
        significantly, because the resulting change in the price
        of an Intel-compatible PC system would be very minor.
        Another reason for the limited demand for network
        computer systems is the fact that few consumers are in a
        position to turn from PC systems to network computer
        systems without making substantial sacrifices; for the
        network computing option exhibits significant
        shortcomings for current PC owners and first-time
        buyers alike. The problems of latency, congestion,
        asynchrony, and insecurity across a communications
        network, and contention for limited processing and
        memory resources at the remote server, can all result in
        a substantial derogation of computing performance.
        Moreover, the owner of a network computer is required
        to enter into long-term dependency upon the owner of a
        remote server in order to obtain functionality that
        would reside within his control if he owned a PC
        system. If network computing becomes a viable
        alternative to PC-based computing, it will be because
        innovation by the proponents of the network computing
        model overcomes these problems, and it will happen
        even if Intel-compatible PC operating systems are
        priced at competitive levels. In any case, that day has
        not arrived, nor does it appear imminent.

        5. Server-Based Computing Generally

        27. As the bandwidth available to the average user
        increases, "portal" Web sites, which aggregate Web
        content and provide services such as search engines,
        E-mail, and travel reservation systems, could begin to
        host full lines of the server-based,
        personal-productivity applications that have begun to
        appear in small numbers on the Web. If so, increasing
        numbers of computer users equipped with Web
        browsers and IAP connections could begin to conduct a
        significant portion of their computing through these
        portals. To the extent they might do so, users probably
        would not regard the Mac OS's limited stock of
        compatible applications as the major drawback to using
        an Apple PC system that it is today, and they might be
        increasingly drawn to network computer systems and
        information appliances. The variety and ease of use of
        server-based applications accessible through browsers
        would have to increase a great deal from today's levels,
        however, before the total costs of dispensing with an
        Intel-compatible PC operating system would decline
        sufficiently to impose a significant constraint on the
        pricing of those systems. Again, that day is not
        imminent; for at least the next few years, the
        overwhelming majority of consumers accessing
        server-based applications will do so using an
        Intel-compatible PC system and a browser.

        6. Middleware

        28. Operating systems are not the only software
        programs that expose APIs to application developers.
        The Netscape Web browser and Sun Microsystems,
        Inc.'s Java class libraries are examples of
        non-operating system software that do likewise. Such
        software is often called "middleware" because it relies
        on the interfaces provided by the underlying operating
        system while simultaneously exposing its own APIs to
        developers. Currently no middleware product exposes
        enough APIs to allow independent software vendors
        ("ISVs") profitably to write full-featured personal
        productivity applications that rely solely on those APIs.

        29. Even if middleware deployed enough APIs to
        support full-featured applications, it would not function
        on a computer without an operating system to perform
        tasks such as managing hardware resources and
        controlling peripheral devices. But to the extent the
        array of applications relying solely on middleware
        comes to satisfy all of a user's needs, the user will not
        care whether there exists a large number of other
        applications that are directly compatible with the
        underlying operating system. Thus, the growth of
        middleware-based applications could lower the costs
        to users of choosing a non-Intel-compatible PC
        operating system like the Mac OS. It remains to be
        seen, though, whether there will ever be a sustained
        stream of full-featured applications written solely to
        middleware APIs. In any event, it would take several
        years for middlware and the applications it supports to
        evolve from the status quo to a point at which the cost
        to the average consumer of choosing a non-Intel
        compatible PC operating system over an
        Intel-compatible one falls so low as to constrain the
        pricing of the latter systems.

        B. The Possibility of Supply Responses

        30. Firms that do not currently produce
        Intel-compatible PC operating systems could do so.
        What is more, once a firm had written the necessary
        software code, it could produce millions of copies of
        its operating system at relatively low cost. The ability
        to meet a large demand is useless, however, if the
        demand for the product is small, and signs do not
        indicate large demand for a new Intel-compatible PC
        operating system. To the contrary, they indicate that the
        demand for a new Intel-compatible PC operating
        system would be severely constrained by an intractable
        "chicken-and-egg" problem: The overwhelming
        majority of consumers will only use a PC operating
        system for which there already exists a large and varied
        set of high-quality, full-featured applications, and for
        which it seems relatively certain that new types of
        applications and new versions of existing applications
        will continue to be marketed at pace with those written
        for other operating systems. Unfortunately for firms
        whose products do not fit that bill, the porting of
        applications from one operating system to another is a
        costly process. Consequently, software developers
        generally write applications first, and often
        exclusively, for the operating system that is already
        used by a dominant share of all PC users. Users do not
        want to invest in an operating system until it is clear
        that the system will support generations of applications
        that will meet their needs, and developers do not want
        to invest in writing or quickly porting applications for
        an operating system until it is clear that there will be a
        sizeable and stable market for it. What is more,
        consumers who already use one Intel-compatible PC
        operating system are even less likely than first-time
        buyers to choose a newcomer to the field, for switching
        to a new system would require these users to scrap the
        investment they have made in applications, training, and
        certain hardware.

        31. The chicken-and-egg problem notwithstanding, a
        firm might reasonably expect to make a profit by
        introducing an Intel-compatible PC operating system
        designed to support a type of application that satisfies
        the special interests of a particular subset of users. For
        example, Be, Inc. (`Be") markets an Intel-compatible
        PC operating system called BeOS that offers superior
        support for multimedia applications, and the operating
        system enjoys a certain amount of success with the
        segment of the consumer population that has a special
        interest in creating and playing multimedia content with
        a PC system. Still, while a niche operating system
        might turn a profit, the chicken-and-egg problem
        (hereinafter referred to as the "applications barrier to
        entry") would make it prohibitively expensive for a
        new Intel-compatible operating system to attract enough
        developers and consumers to become a viable
        alternative to a dominant incumbent in less than a few
        years.

        32. To the extent that developers begin writing
        attractive applications that rely solely on servers or
        middleware instead of PC operating systems, the
        applications barrier to entry could erode. As the Court
        finds above, however, it remains to be seen whether
        server- or middleware-based development will
        flourish at all. Even if such development were already
        flourishing, it would be several years before the
        applications barrier eroded enough to clear the way for
        the relatively rapid emergence of a viable alternative to
        incumbent Intel-compatible PC operating systems. It is
        highly unlikely, then, that a firm not already marketing
        an Intel-compatible PC operating system could begin
        marketing one that would, in less than a few years,
        present a significant percentage of consumers with a
        viable alternative to incumbents.

        III. MICROSOFT'S POWER IN THE RELEVANT
        MARKET

        33. Microsoft enjoys so much power in the market for
        Intel-compatible PC operating systems that if it wished
        to exercise this power solely in terms of price, it could
        charge a price for Windows substantially above that
        which could be charged in a competitive market.
        Moreover, it could do so for a significant period of
        time without losing an unacceptable amount of business
        to competitors. In other words, Microsoft enjoys
        monopoly power in the relevant market.

        34. Viewed together, three main facts indicate that
        Microsoft enjoys monopoly power. First, Microsoft's
        share of the market for Intel-compatible PC operating
        systems is extremely large and stable. Second,
        Microsoft's dominant market share is protected by a
        high barrier to entry. Third, and largely as a result of
        that barrier, Microsoft's customers lack a commercially
        viable alternative to Windows.

        A. Market Share

        35. Microsoft possesses a dominant, persistent, and
        increasing share of the world-wide market for
        Intel-compatible PC operating systems. Every year for
        the last decade, Microsoft's share of the market for
        Intel-compatible PC operating systems has stood above
        ninety percent. For the last couple of years the figure
        has been at least ninety-five percent, and analysts
        project that the share will climb even higher over the
        next few years. Even if Apple's Mac OS were included
        in the relevant market, Microsoft's share would still
        stand well above eighty percent.

        B. The Applications Barrier to Entry

        1. Description of the Applications Barrier to Entry

        36. Microsoft's dominant market share is protected by
        the same barrier that helps define the market for
        Intel-compatible PC operating systems. As explained
        above, the applications barrier would prevent an
        aspiring entrant into the relevant market from drawing a
        significant number of customers away from a dominant
        incumbent even if the incumbent priced its products
        substantially above competitive levels for a significant
        period of time. Because Microsoft's market share is so
        dominant, the barrier has a similar effect within the
        market: It prevents Intel-compatible PC operating
        systems other than Windows from attracting significant
        consumer demand, and it would continue to do so even
        if Microsoft held its prices substantially above the
        competitive level.

        37. Consumer interest in a PC operating system derives
        primarily from the ability of that system to run
        applications. The consumer wants an operating system
        that runs not only types of applications that he knows he
        will want to use, but also those types in which he might
        develop an interest later. Also, the consumer knows
        that if he chooses an operating system with enough
        demand to support multiple applications in each
        product category, he will be less likely to find himself
        straitened later by having to use an application whose
        features disappoint him. Finally, the average user
        knows that, generally speaking, applications improve
        through successive versions. He thus wants an
        operating system for which successive generations of
        his favorite applications will be released -- promptly at
        that. The fact that a vastly larger number of applications
        are written for Windows than for other PC operating
        systems attracts consumers to Windows, because it
        reassures them that their interests will be met as long as
        they use Microsoft's product.

        38. Software development is characterized by
        substantial economies of scale. The fixed costs of
        producing software, including applications, is very
        high. By contrast, marginal costs are very low.
        Moreover, the costs of developing software are "sunk"
        -- once expended to develop software, resources so
        devoted cannot be used for another purpose. The result
        of economies of scale and sunk costs is that application
        developers seek to sell as many copies of their
        applications as possible. An application that is written
        for one PC operating system will operate on another PC
        operating system only if it is ported to that system, and
        porting applications is both time-consuming and
        expensive. Therefore, application developers tend to
        write first to the operating system with the most users --
        Windows. Developers might then port their
        applications to other operating systems, but only to the
        extent that the marginal added sales justify the cost of
        porting. In order to recover that cost, ISVs that do go to
        the effort of porting frequently set the price of ported
        applications considerably higher than that of the
        original versions written for Windows.

        39. Consumer demand for Windows enjoys positive
        network effects. A positive network effect is a
        phenomenon by which the attractiveness of a product
        increases with the number of people using it. The fact
        that there is a multitude of people using Windows
        makes the product more attractive to consumers. The
        large installed base attracts corporate customers who
        want to use an operating system that new employees are
        already likely to know how to use, and it attracts
        academic consumers who want to use software that
        will allow them to share files easily with colleagues at
        other institutions. The main reason that demand for
        Windows experiences positive network effects,
        however, is that the size of Windows' installed base
        impels ISVs to write applications first and foremost to
        Windows, thereby ensuring a large body of
        applications from which consumers can choose. The
        large body of applications thus reinforces demand for
        Windows, augmenting Microsoft's dominant position
        and thereby perpetuating ISV incentives to write
        applications principally for Windows. This
        self-reinforcing cycle is often referred to as a "positive
        feedback loop."

        40. What for Microsoft is a positive feedback loop is
        for would-be competitors a vicious cycle. For just as
        Microsoft's large market share creates incentives for
        ISVs to develop applications first and foremost for
        Windows, the small or non-existent market share of an
        aspiring competitor makes it prohibitively expensive
        for the aspirant to develop its PC operating system into
        an acceptable substitute for Windows. To provide a
        viable substitute for Windows, another PC operating
        system would need a large and varied enough base of
        compatible applications to reassure consumers that
        their interests in variety, choice, and currency would be
        met to more-or-less the same extent as if they chose
        Windows. Even if the contender attracted several
        thousand compatible applications, it would still look
        like a gamble from the consumer's perspective next to
        Windows, which supports over 70,000 applications.
        The amount it would cost an operating system vendor to
        create that many applications is prohibitively large.
        Therefore, in order to ensure the availability of a set of
        applications comparable to that available for
        Windows, a potential rival would need to induce a very
        large number of ISVs to write to its operating system.

        41. In deciding whether to develop an application for a
        new operating system, an ISV's first consideration is
        the number of users it expects the operating system to
        attract. Out of this focus arises a collective-action
        problem: Each ISV realizes that the new operating
        system could attract a significant number of users if
        enough ISVs developed applications for it; but few
        ISVs want to sink resources into developing for the
        system until it becomes established. Since everyone is
        waiting for everyone else to bear the risk of early
        adoption, the new operating system has difficulty
        attracting enough applications to generate a positive
        feedback loop. The vendor of a new operating system
        cannot effectively solve this problem by paying the
        necessary number of ISVs to write for its operating
        system, because the cost of doing so would dwarf the
        expected return.

        42. Counteracting the collective-action phenomenon is
        another known as the "first-mover incentive." For an
        ISV interested in attracting users, there may be an
        advantage to offering the first and, for a while, only
        application in its category that runs on a new PC
        operating system. The user base of the new system may
        be small, but every user of that system who wants such
        an application will be compelled to use the ISV's
        offering. Moreover, if demand for the new operating
        system suddenly explodes, the first mover will reap
        large sales before any competitors arrive. An ISV thus
        might be drawn to a new PC operating system as a
        "protected harbor." Once first-movers stake claims to
        the major categories of applications, however, there is
        a strong chance that the new operating system could
        stall; it would not support the most familiar
        applications, nor the variety and number of
        applications, that attract large numbers of consumers,
        and there would no longer exist a first-mover incentive
        to attract additional ISVs to the important application
        categories. Although the upstart operating system might
        find itself with enough applications support to hold a
        fraction of the market, the collective-action
        phenomenon would still prevent the system from
        gaining the kind of positive feedback momentum that
        can turn a fringe entrant into a rival that would put
        competitive pressure on Windows.

        43. The cost to a would-be entrant of inducing ISVs to
        write applications for its operating system exceeds the
        cost that Microsoft itself has faced in inducing ISVs to
        write applications for its operating system products, for
        Microsoft never confronted a highly penetrated market
        dominated by a single competitor. Of course, the fact
        that it is extremely difficult for an efficient would-be
        rival to accumulate enough applications support to
        compete with Windows does not mean that sustaining
        its own applications support is effortless for Microsoft.
        In fact, if Microsoft stopped investing the hundreds of
        millions of dollars it spends each year inducing ISVs to
        write applications for Windows, it might become
        easier than it currently is for a competitor to develop its
        own positive feedback loop. But given that Windows
        today enjoys overwhelmingly more applications
        support than any other PC operating system, it would
        still take that competitor years to develop the necessary
        momentum. Plus, while Microsoft may spend more on
        platform "evangelization," even in relative terms, than
        any other PC operating-system vendor, it is not difficult
        to understand why it is worthwhile for the principal
        beneficiary of the applications barrier to devote more
        resources to augmenting it than aspiring rivals are
        willing to expend in speculative efforts to erode it.

        44. Microsoft continually releases "new and improved"
        versions of its PC operating system. Each time it does,
        Microsoft must convince ISVs to write applications that
        take advantage of new APIs, so that existing Windows
        users will have incentive to buy an upgrade. Since ISVs
        are usually still earning substantial revenue from
        applications written for the last version of Windows,
        Microsoft must convince them to write for the new
        version. Even if ISVs are slow to take advantage of the
        new APIs, though, no applications barrier stands in the
        way of consumers adopting the new system, for
        Microsoft ensures that successive versions of Windows
        retain the ability to run applications developed for
        earlier versions. In fact, since ISVs know that
        consumers do not feel locked into their old versions of
        Windows and that new versions have historically
        attracted substantial consumer demand, ISVs will
        generally write to new APIs as long as the interfaces
        enable attractive, innovative features. Microsoft
        supplements developers' incentives by extending
        various `seals of approval' -- visible to consumers,
        investors, and industry analysts -- to those ISVs that
        promptly develop new versions of their applications
        adapted to the newest version of Windows. In addition,
        Microsoft works closely with ISVs to help them adapt
        their applications to the newest version of the operating
        system -- a process that is in any event far easier than
        porting an application from one vendor's PC operating
        system to another's. In sum, despite the substantial
        resources Microsoft expends inducing ISVs to develop
        applications for new versions of Windows, the
        company does not face any obstacles nearly as
        imposing as the barrier to entry that vendors and
        would-be vendors of other PC operating systems must
        overcome.
 

........................................  Paragraphs 49 to 407 available here  ........................................

VII. THE EFFECT ON CONSUMERS OF
        MICROSOFT'S EFFORTS TO PROTECT THE
        APPLICATIONS BARRIER TO ENTRY

        408. The debut of Internet Explorer and its rapid
        improvement gave Netscape an incentive to improve
        Navigator's quality at a competitive rate. The inclusion
        of Internet Explorer with Windows at no separate
        charge increased general familiarity with the Internet
        and reduced the cost to the public of gaining access to
        it, at least in part because it compelled Netscape to
        stop charging for Navigator. These actions thus
        contributed to improving the quality of Web browsing
        software, lowering its cost, and increasing its
        availability, thereby benefitting consumers.

        409. To the detriment of consumers, however,
        Microsoft has done much more than develop innovative
        browsing software of commendable quality and offer it
        bundled with Windows at no additional charge. As has
        been shown, Microsoft also engaged in a concerted
        series of actions designed to protect the applications
        barrier to entry, and hence its monopoly power, from a
        variety of middleware threats, including Netscape's
        Web browser and Sun's implementation of Java. Many
        of these actions have harmed consumers in ways that
        are immediate and easily discernible. They have also
        caused less direct, but nevertheless serious and
        far-reaching, consumer harm by distorting competition.

        410. By refusing to offer those OEMs who requested it
        a version of Windows without Web browsing software,
        and by preventing OEMs from removing Internet
        Explorer -- or even the most obvious means of invoking
        it -- prior to shipment, Microsoft forced OEMs to
        ignore consumer demand for a browserless version of
        Windows. The same actions forced OEMs either to
        ignore consumer preferences for Navigator or to give
        them a Hobson's choice of both browser products at the
        cost of increased confusion, degraded system
        performance, and restricted memory. By ensuring that
        Internet Explorer would launch in certain circumstances
        in Windows 98 even if Navigator were set as the
        default, and even if the consumer had removed all
        conspicuous means of invoking Internet Explorer,
        Microsoft created confusion and frustration for
        consumers, and increased technical support costs for
        business customers. Those Windows purchasers who
        did not want browsing software -- businesses, or
        parents and teachers, for example, concerned with the
        potential for irresponsible Web browsing on PC
        systems -- not only had to undertake the effort necessary
        to remove the visible means of invoking Internet
        Explorer and then contend with the fact that Internet
        Explorer would nevertheless launch in certain cases;
        they also had to (assuming they needed new,
        non-browsing features not available in earlier versions
        of Windows) content themselves with a PC system that
        ran slower and provided less available memory than if
        the newest version of Windows came without browsing
        software. By constraining the freedom of OEMs to
        implement certain software programs in the Windows
        boot sequence, Microsoft foreclosed an opportunity for
        OEMs to make Windows PC systems less confusing
        and more user-friendly, as consumers desired. By
        taking the actions listed above, and by enticing firms
        into exclusivity arrangements with valuable
        inducements that only Microsoft could offer and that the
        firms reasonably believed they could not do without,
        Microsoft forced those consumers who otherwise
        would have elected Navigator as their browser to
        either pay a substantial price (in the forms of
        downloading, installation, confusion, degraded system
        performance, and diminished memory capacity) or
        content themselves with Internet Explorer. Finally, by
        pressuring Intel to drop the development of
        platform-level NSP software, and otherwise to cut back
        on its software development efforts, Microsoft
        deprived consumers of software innovation that they
        very well may have found valuable, had the innovation
        been allowed to reach the marketplace. None of these
        actions had pro-competitive justifications.

        411. Many of the tactics that Microsoft has employed
        have also harmed consumers indirectly by unjustifiably
        distorting competition. The actions that Microsoft took
        against Navigator hobbled a form of innovation that had
        shown the potential to depress the applications barrier
        to entry sufficiently to enable other firms to compete
        effectively against Microsoft in the market for
        Intel-compatible PC operating systems. That
        competition would have conduced to consumer choice
        and nurtured innovation. The campaign against
        Navigator also retarded widespread acceptance of
        Sun's Java implementation. This campaign, together
        with actions that Microsoft took with the sole purpose
        of making it difficult for developers to write Java
        applications with technologies that would allow them
        to be ported between Windows and other platforms,
        impeded another form of innovation that bore the
        potential to diminish the applications barrier to entry.
        There is insufficient evidence to find that, absent
        Microsoft's actions, Navigator and Java already would
        have ignited genuine competition in the market for
        Intel-compatible PC operating systems. It is clear,
        however, that Microsoft has retarded, and perhaps
        altogether extinguished, the process by which these two
        middleware technologies could have facilitated the
        introduction of competition into an important market.

        412. Most harmful of all is the message that Microsoft's
        actions have conveyed to every enterprise with the
        potential to innovate in the computer industry. Through
        its conduct toward Netscape, IBM, Compaq, Intel, and
        others, Microsoft has demonstrated that it will use its
        prodigious market power and immense profits to harm
        any firm that insists on pursuing initiatives that could
        intensify competition against one of Microsoft's core
        products. Microsoft's past success in hurting such
        companies and stifling innovation deters investment in
        technologies and businesses that exhibit the potential to
        threaten Microsoft. The ultimate result is that some
        innovations that would truly benefit consumers never
        occur for the sole reason that they do not coincide with
        Microsoft's self-interest.

        ___________/s/_______________

        Thomas Penfield Jackson

        U.S. District Judge

        Date: November 5, 1999