The simmering battle between Microsoft and the two biggest security software vendors is boiling over as Microsoft finalizes changes to the Windows Vista operating system that Symantec and McAfee say impede their products. The crux of the dispute is Vista's ability to protect its most fundamental code from cyberattacks versus the ability of other companies' software to check for telltale signs of malicious programs. As Microsoft prepares to release a final test version of Windows Vista, the software vendors are stepping up talks with antitrust regulators and kicking off a public-relations campaign against what they see as Microsoft's attempts to block their products.
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