, unreasonable large "minimum commitments" from OEM's. In turn the effect of Microsoft's practices and agreements were unlawfully used to maintain their monopoly in the PC operating systems market. The United States has presented this prior face along with many more. The natures of some of these findings are as follows:
             1. Microsoft posses (and for several years has possessed) a monopolistic power in the market for personal computer operating systems.
             2. There are high barriers to entry in the market for PC operating systems. One of the most important barriers to entry is the barrier created by the number of software applications that must run on an operating system in order to make the OS to end users. Because end users want a large number of applications available, because most applications today are written to run on Windows, and because it would be prohibitively difficult, time consuming, and expensive system that would run the programs that run on Windows, a potential new operating system entrant faces a high barrier to successful entry.
             3. Microsoft's Christian WildFeuer wrote in February 1997, that Microsoft had concluded that it would "be very hard to increase browser share on the merits of Internet Explorer 4.0 alone. It would be more important to lev
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