Microsoft will continue selling software the traditional way, for a one-time fee for one Windows computer.

NPR: Review: Microsoft Office Pricey, But Good Value

If you have just one computer, the one-time fee is clearly for you.

NPR: Review: Microsoft Office Pricey, But Good Value

To protect against that, the law required that when investment managers give advice it must be based on either "unbiased" computer models or a "level-fee" arrangement where advisers aren't paid based on the investments participants buy.

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