Microsoft patches critical Windows holes
Microsof released four security fixes it deems critical as part of its regularly scheduled software update on Tuesday, while it corrected a handful of problems caused by last week's emergency patch.
Three of the updates marked with Microsoft's highest threat rating plug holes in the Windows operating system; the vulnerabilities could be used by hackers to install malicious code on personal computers.
The fourth fixes a security flaw in Microsoft Content Management Server software, a business application.
Last Tuesday, Microsoft broke its normal once-monthly update schedule with an emergency fix for the way many versions of Windows, including the newly released Vista, handle animated cursor files. Microsoft and security experts had found that hackers were exploiting the hole and installing malicious software on personal computers.
