All anonymous purchasers get a user account created for them, either with details they supply on checkout or automatically generated if they leave it blank. One of the features I love about UC But yes, previously it would both create a download link that was sent in an email, plus after the checkout they're logged in and could access it through their account.

File association stuff is completely the same.

No, the file downloads email isn't getting sent for anons either. It's like the file doesn't *exist* for anons. It's driving me batty because I'm sure this was working a few days ago when I was testing all the permutations of after-checkout messages and emails to get all the tokens right. That's how I discovered that you couldn't actually put the file download token or UID on the after-checkout page. Soooo... I'm quite sure it was working then.

I figure it's either something really silly I've overlooked/unset or a bug uncovered by a bizarre combination of settings.