Difficult to do that if you have the MSDN access and they don't. It would be piracy to give them access to your MSDN Windows 8.1 RTM when they only have the 8.1

Difficult to do that if you have the MSDN access and they don't. It would be piracy to give them access to your MSDN Windows 8.1 RTM when they only have the 8.1 Preview the public gets. Yet still they would have to wait until October to download the 8.1 update. I remember having issues with other Microsoft products like this going way back when since before the 21st century. Microsoft never learned from this and it puts software makers in a big jam before the RTM becomes public.