Kollar-Kotelly also ordered Microsoft to make broad disclosure of technical information and use objective standards in granting marketing discounts to computer makers.
Shares of Redmond, Washington-based Microsoft, which have risen 8.8 percent since the judge approved the settlement on Nov. 1, fell US$0.40 to US$57.68 in NASDAQ Stock Market trading.
Microsoft still faces the threat of European antitrust enforcers after completing an investigation of the company's move into the market for low-end servers, the hubs of computer networks.
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