The company is forced to pay a fine of $32 million and must also remove its Windows Messenger IM program from Windows operating sytems in S. Korea:

Microsoft Corp. was ordered to separate its instant messaging service from its Windows software and allow rival products on its system in South Korea after losing an antitrust case on Wednesday.

The U.S. software firm, which was also fined about $32 million, said it would appeal the decision by South Korea's Fair Trade Commission (FTC) but did not plan to make good on a threat to withdraw its Windows operating system from the country.

This news article was written on December 9, 2005, quoting Reuters.