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He told delegates of a major Swiss bank which was only happy when it paid up to $80 a seat for an enterprise version of Star Office, even though the open-source version is free.
McNealy said any user crisis of confidence in Sun was misplaced. The company has $6bn (£3.8bn) cash, no long-term debt, and domination in the 64-bit market. "We did too well monetising the dotcom bubble," he added, criticising financial analysts for marking down Sun shares as a result.
Sun was correct in selling both Unix-based Solaris and Linux at the same time, said McNealy, adding that Solaris is geared to the 64-bit environment, but he admitted he had thought many more users would have moved to 64-bit by now.
He said that the economic climate meant that users were satisfied with a "good enough" environment.
McNealy also urged users not to pay for middleware. "If you are paying for middleware - stop! - It's only a feature," he said.