OK, I figured to play with it. Sorry didn't give you the best link... NVDA is free, so you can easily try it yourself.

DataFlex is not compatible.

When you open something like the Order Entry sample and tab into the "Order Number" field it says "edit", then tab to the "Customer Number" again it says "edit".

Navigating in a customer list ... "silence"...

Switch -> "Ok button" -- it says "OK button alt class O"
Tab -> "Cancel button" -- it says "Cancel button alt class C"
Tab -> "Search button" -- it says "Search button alt class S"

So "Alt class <letter>" is the Alt keyboard access.. buttons work.

But if forms don't work... codejock lists don't work ....

--
Wil