Vista Europe launch on track: Microsoft

BRUSSELS Microsoft said on Thursday it remained on track to launch its Windows Vista operating system in Europe in January but again asked the European Commission to detail concerns it may have with the software.

"The release of Vista as far as we are concerned remains on track. However, we have received no clarity as of yet from the Commission over their concerns," said a Microsoft spokesman at the release of a study on potential economic gains from Vista.

"To say nothing creates an uncertain environment. We urge the Commission sooner rather than later to come forward with their concerns," the spokesman said.

The European Union's executive Commission -- which has been involved in a long antitrust battle with the U.S. software group -- this week warned Microsoft against foreclosing competition in computer security by tying new security features into Vista.