Microsoft Corp is getting ready to unveil a long-anticipated free anti-virus service for personal computers that will compete with products sold by Symantec Corp and McAfee Inc.
A Microsoft spokesman said on Wednesday that the world's biggest software maker is testing an early version of the product with its own employees. Microsoft would "soon" make a trial version, or product beta, available via its website, he added, but declined to provide a specific date.
Symantec shares fell 0.5 percent on Nasdaq and McAfee fell 1.3 percent on the New York Stock Exchange, while Microsoft was up 2.1 percent. The Nasdaq composite index was down 0.47 percent.