Microsoft filed a formal complaint Thursday with European antitrust regulators about Google's dominance of the Internet search market in the region.
Google bars competitors from accessing its YouTube video site for search results and has kept phones running Microsoft’s operating system from working properly with YouTube, Redmond-based Microsoft said in a blog posting by general counsel Brad Smith.
A Microsoft unit and two other rivals last year lodged a complaint with the European Union, which is investigating whether Google has violated the region’s antitrust laws. Google is under growing pressure from global regulators that are probing whether the company uses its dominance of Web search to thwart competition.
“Our filing today focuses on a pattern of actions that Google has taken to entrench its dominance in the markets for online search and search advertising to the detriment of European consumers,” Smith wrote in the blog posting.
While Microsoft and partner Yahoo! have about a quarter of the U.S. search market and Google the rest, Google has almost 95 percent of the market in Europe, Smith said, citing data from regulators.
Google “is not surprised” that Microsoft has complained because its advertising unit, Ciao from Bing, filed a complaint last year, said Al Verney, a spokesman for Google in Brussels.
“We continue to discuss the case with the European Commission and we’re happy to explain to anyone how our business works,” he said in an email.
Amelia Torres, a spokeswoman for the European Commission in Brussels, declined to comment.
Besides cordoning off YouTube, Google also is seeking to block access to content owned by book publishers and restricting its own advertisers from accessing the data they put in Google servers as part of ad campaigns, Microsoft said.
Google also has signed contracts that block top European websites from distributing rival search boxes, Microsoft said. For example, Microsoft can’t distribute some email and document services through certain European telecommunications companies that have contracts with Google because these services make use of Bing search boxes, Smith said.