via Network World

Neon Enterprise Software on Thursday said it plans to file a mainframe-related complaint against IBM with the European Commission, compounding the IT giant's mounting regulatory issues in Europe.

Neon, which makes software for mainframe computers, said the complaint is connected with IBM's "on-going anticompetitive and abusive conduct" in the mainframe business. The company did not comment on when it would file the complaint.

IBM has already been slapped with three mainframe antitrust complaints in Europe from TurboHercules, PSI and T3 Technologies. In March, TurboHercules, a mainframe software company in France, filed a complaint with the Commission in which it said that IBM ties its OS with mainframe hardware, which freezes out smaller competitors.

IBM has not yet received any complaint, wrote Steve Eisenstadt, an IBM spokesman, in an e-mail.