Ballmer’s biggest regret at Microsoft? Windows Vista

Steve Ballmer is retiring from Microsoft within the next 12 months, and he’s had some time to reflect on his 13-year experience as CEO. In an interview with ZDNet’s Mary Jo Foley, Ballmer reveals his proudest achievement over his 33 years at Microsoft is being “a significant part even of the birth of intelligent personal computing.” Detailing his regrets, he lays the blame solely on Windows Vista. “I would say probably the thing I regret most is the, what shall I call it, the loopedy-loo that we did that was sort of Longhorn to Vista,” says Ballmer. “I would say that’s probably the thing I regret most.”