The European Commission said it had received the complaint and that it will review it.
Microsoft is already embroiled in a standoff with the European Commission on whether or not the group is complying with a March 2004 anti-trust decision against it, in which the software company was fined a record 497 million Euros ($588 millions) for abuse of its market position.
Microsoft was also ordered to sell a version of its Windows operating system that does not include its Media Player software and to divulge information on its operating system needed by manufacturers of rival products.
Microsoft appeared unperturbed by the new complaint as it declared in a statement:
"We have come to expect that as we introduce new products that benefit consumers, a few competitors will complain. We will respond quickly and comprehensively to any requests for information from the Commission on this complaint, but no such requests have been received so far," the firm said.