A group of IT companies has complained to the European Commission that Microsoft is still engaged in anti-competitive practices.

The European Committee for Interoperable Systems has filed a complaint claiming that Microsoft "threatens to deny enterprises and individual consumers real choice".

The group called on the EC to take action to prevent Microsoft pushing its market dominance in some areas to new areas of technology. It emerged today that Tangent Computers filed suit against Microsoft in the US on Valentine's day.

ECIS is made up of IBM, Oracle, Sun, Nokia and Real Networks - and is dismissed by Microsoft as a front for IBM using regulators to bolster their business.

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