At the end of the 19th century, social and economic changes brought about by the Industrial Revolution threatened the viability of capitalism. By creating antitrust law, the government successfully curtailed the worst abuses of monopoly power. Now, at the end of the 20th century, we are in the midst of the Information Revolution. The applicability of 20th century law to the 21st century economic order is being tested by recent government action against the largest of the software giants, Microsoft Corporation. Our project examines the Microsoft antitrust case and its historical precedents. We consider the legal and economic implications of monopoly power in the software industry and evaluate several possible resolutions to the Microsoft case.