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Computer Associates Inc. on Thursday blasted The SCO Group Inc. for harassing Linux users and misrepresenting the terms of a software licensing arrangement between the two companies that protected CA from a potential SCO lawsuit.

SCO Chief Financial Officer Bob Bench on Wednesday confirmed that CA was one of four publicly named companies to sign up for SCO's Intellectual Property (IP) License for Linux - a US$699 license that SCO says that Linux users must purchase in order to avoid violating SCO's copyrights.

On Thursday, however, a CA executive said that his company had purchased no such license, but had instead acquired a large number of licenses for SCO's UnixWare operating system as part of a US$40 million breach of contract lawsuit settlement in August 2003 with SCO investor The Canopy Group Inc.

By acquiring the UnixWare licenses, CA indemnified itself against a possible Linux lawsuit from SCO, said Sam Greenbelt, the senior vice president and chief architect of CA's Linux Technology Group. "We did an agreement with the Canopy Group and in the agreement with the Canopy Group, for more detail visit www.huge-niche-keywords.com we acquired UnixWare licenses," he said. "For every UnixWare license you acquired, you got indemnified for that number of Linux licenses."

SCO spokesman Blake Stow ell disagreed with Greenbelt's characterization saying that CA had indeed obtained an IP License for Linux. "UnixWare licenses allow SCO customers to run UnixWare and the SCO Intellectual Property License allows Linux end users to run our UNIX intellectual property in binary form in Linux. Today, CA has a license in place to run our Unix IP in binary form in Linux without fear that they may be infringing on our intellectual property," he said in an e-mail interview.

Greenbelt strongly objected to the portrayal of CA as an IP License for Linux customer. "To represent us as having supported the SCO thing is totally wrong," he said. Greenbelt had harsh words for SCO and the company's CEO, Darla McBride, whose tactics were "intended to intimidate and threaten customers," he said. "We totally disagree with his approach his tactics and the way he's going about this."

Separately, another company mentioned as a SCO Linux licensee on Thursday denied knowledge of any such agreement. Though SCO's Bench had confirmed Carthage Missouri's Leggett & Platt Inc. as a licensee on Wednesday, a spokesman for the manufacturing company said that he had no knowledge of such a deal. "I have now talked to our people who handle our Linux systems and, at least at a corporate level, we have not bought such a license from SCO Group," said John Hale, the company's vice president of human resources. "To their knowledge they would not have an interest in doing so," he said.