An attorney for software giant Microsoft Corp. on Wednesday disputed the testimony of an interactive television executive who charged Microsoft had muscled in on his company's business. Microsoft attorney Dan Webb challenged Mitchell Kertzman, chief executive of Liberate Technologies LBRT.O , to cite any examples in which Microsoft had used illegal tactics to cut into Liberate's business. Webb also questioned Kertzman's claim that Liberate poses a competitive threat to Microsoft. Kertzman, the 10th witness called by nine states that have rejected a proposed settlement of the U.S. Justice Department's antitrust case against Microsoft, said Microsoft was making inroads into interactive television by requiring the use of its software as a condition of major investments in cable television firms.
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