Microsoft Corp. says a flaw in its Windows operating system software could allow hackers to shut down online video games.
A flaw in most versions of the Windows operating system would let a hacker shut down video games that are based on Microsoft's DirectPlay technology. The flaw doesn't affect Microsoft's Xbox game console.
Microsoft has made a software patch for the flaw available on its website.
Microsoft shares rose 17 cents to $26.60 on Nasdaq.