Answers.com - 1-Click AnswersTM 2.0 for Windows -- Product Info
I downloaded the latest version this morning, as one of the zillion or so Windows Updates I've applied recently somehow broke my previous configuration, and was very pleased to discover the user experience/interface of this invaluable (free!) tool has been much improved. I've been using the utility for years -- known, along the way, as Gurunet, Atomica, and now Answers.com; highly recommended.
(p.s., Irwin, there's a Mac version as well...)