IBM could soon join Microsoft as one of the software suppliers accused of abusing its monopoly by the European Commission.
IBM rival T3 Technologies is to lodge a complaint with the EC that IBM has abused its monopoly by tying sales of its operating system to its mainframe hardware, the Financial Times reports.
T3 Technologies is also expected to claim IBM has withheld patent licences and other intellectual property to the detriment of mainframe purchasers in Europe.
News of the T3 complaint comes just a day after the EC charged Microsoft with abusing its monopoly by tying the Internet Explorer browser to the Windows operating system.
The charges follow a year-long investigation based on a complaint by Norwegian browser developer Opera Software. The company saidMicrosoft is limiting user choice and hindering interoperability.
The EC will consider T3's complaint before deciding whether or not to take action against IBM.
T3 is also taking separate legal action against IBM in the US, where the company claims its operations were forced to close down by IBM's abuse of its dominant market position.