Microsoft will no longer furnish authorization keys for songs purchased from the defunct MSN Music service.
"No one ever foresaw being in this situation," Bennett said. "It's not something we like to do. We want to make it easy and as painless for our customers as possible. We really feel, in the long term, what's best for people who want to buy music from Microsoft is to move to Zune."
One thing to add: "Fool me once, shame on you. Fool me twice, shame on me."