Microsoft's Bold Bid to Fix Health Care

The more you look at the problems involved in overhauling our health-care system, the more hopeless they seem. But that is exactly what made Peter Neupert, a Microsoft millionaire and dotcom entrepreneur, want to try. "It is completely overwhelming," he says. "My wife reminds me all the time that there are many things a lot simpler that I could be doing. But I just have a genetic predisposition for big, hairy problems."

That's why, in 2005, having already made two fortunes—as a Microsoft executive and then as CEO of Drugstore .com—Neupert returned to Microsoft to create software for health-care providers. His division, the Health Solutions Group, now has 800 employees and sells to hospitals nationwide.