It's not just Symantec that wants to call foul on Microsoft; McAfee got in on the action today with a full-page ad in the print edition of the Financial Times. The ad accuses Microsoft of engaging in dangerous practices that are creating "inherent weaknesses" in Windows Vista. And by "inherent weaknesses," McAfee means limitations on what their own products can do.

Windows Vista does not ship with antivirus software installed and active, but for the first time Microsoft will be promoting their own antivirus service in Windows OneCare. Alex Eckelberry, CEO of Sunbelt Software, has already called Microsoft's plans predatory based on pricing. McAfee is focusing its critique on operating system design, arguing instead that Microsoft's decisions with Vista will simply make the operating system less secure.