By Laura Mills

MOSCOW--A Russian antitrust watchdog said Thursday that it was opening a case against Microsoft Corp. for abusing its dominant market position.

The Federal Antimonopoly Service said in a statement online that it had opened a case to investigate Microsoft over its antivirus software. The statement said the company may be giving preferential treatment to its own operating system over that of competitors.

The regulator said the case had been initiated after a complaintby Kaspersky Lab, a Russian cybersecurity firm.

Earlier this year, Russia fined Alphabet Inc.'s Google 438 million rubles ($6.75 million) for competition violations.

Write to Laura Mills at laura.mills@wsj.com

(END) Dow Jones Newswires

November 10, 2016 09:55 ET (14:55 GMT)

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