—Appeals court overturns Microsoft breakup order, saying trial judge's statements to reporters "seriously tainted" the process.

—Allegation that Microsoft attempted to monopolize the Web browser market is "no longer viable."

—Microsoft may be allowed to tie together two previously unrelated products, such as its Windows operating system and its Web browser, unless the government can show the action would "unreasonably restrain competition."

—Microsoft worked to maintain its operating system monopoly, the court found.

—The now-reversed penalty would have split Microsoft into an operating system firm and another company for everything else it makes, potentially paralyzing the software maker.