In an extraordinary and far reaching opinion, U.S. District Judge Thomas Penfield Jackson ruled that Microsoft Corp. has monopoly power, that the company abused its monopoly, and that consumers were harmed.

Late Friday afternoon, the faces of the prosecutors from the U.S. Justice Department and state attorneys general who brought the case against Microsoft were beaming as they filed into a press conference 10 minutes after the ruling issued, and the Justice Department’s press team passed out a statement from Attorney General Janet Reno. “This is a tremendous victory for America’s consumers,” it said simply.