I presume the intention is to shout down anti-Microsoft speakers, such as Sun's Scott McNealy. There are common themes iterated in the action memo distributed to Microsoft developers and other potential sympathizers. These points are a preview of Microsoft's own defense, so they're worth a comment or two. The browser is an enhancement to the operating system. The D.O.J. should not restrict Microsoft from developing integrated products.
Competitors agree that the browser is part of the operating system.
The U.S. economy benefits from Microsoft's contributions to the software industry. Microsoft is standards-based and open with its information. Do not punish success. Item 1 is supposed to convince recipients that they are independent thinkers, whether they use form letters or not. Item 4 is the most amusing.