To make matters worse, you're not going to get the final release ahead of the general public. I sure hope those bugs are fixed!

http://www.zdnet.com/with-no-early-windows-8-1-rtm-bits-whats-a-developer-to-do-7000019910/

>I am running early versions to find just those problems.
>
>>It could be a concern, but since the final version of Win8.1 is not yet available, I'd also take a wait and see approach.
>>
>>>the sweet potato dll VFPEXMAPI.fll is not working in windows 8.1 either
>>>And craig seems to be missing!
>>>
>>>does anybody see the same problem?
>>>
>>>Peter