SEATTLE, Washington (Reuters) -- Microsoft Corp. warned about a new computer virus that exploits a vulnerability in its PowerPoint presentation software to allow hackers to infiltrate computer systems.

Microsoft issued an advisory on the company's security Web log on July 17 about the virus, which is carried out when a user launches a PowerPoint attachment to an e-mail or opens a file provided to them by the attacker.

http://www.cnn.com/2006/TECH/ptech/0...eut/index.html