Microsoft latest Patch Tuesday is scheduled to deliver fixes for nearly 60 flaws in Internet Explorer, Windows, Office and Exchange Server software. Five are deemed "critical," including two for IE, which is rare, nCircle's Andrew Storms said. "This is the first time I've seen them do this," Storms says. "Unless there's been an 'out-of-band' update for IE, they've never released more than one update [for the browser] in a month." Lumension analyst Paul Henry says the IE patches may have to do with Oracle's recent Java updates.