Great news and thanks for the great report.
What I have to look into is why the path management side of the as6 registration process failed.
In the last version, I purposely set the (x8) without the 6 because the installer is supposed to ALWAYS overwrite the default path with the one selected by users during the install (forgot to change it back after my successful test). The path I set as default should never be used so should not cause a breakage. 32 bit users reported this failure and I needed to be sure the problem applied to both 32 and 64 but it didn't prove to be the case. The installer is so simple yet so annoying!!
I will refresh the build this weekend with either a fix or a correct path for 64 bit users. Hopefully a fix!
As concerns debug, you should be presented with the "activate new license window" when you attempt to enable debug. The window allows for a 30 day trial or to enter a license key.
You are right, I hope to email all beta testers this weekend with a free license key, so in the meantime please click the "30 day" trial button.
One area I have had little time to test is how the system responds for existing beta testers who already have a project with Micro Debug=True. I am hoping that when you try to debug the license/trial window appears automatically. If not then the fix would be to set (Micro Debug=False) then back to True again. Please let me know how this works for you because I don't want to annoy all the beta testers letting them think the debugger is not available to them
New users will see the license prompt after entering their Arduino location (which, in the latest release, is prompted in a pretty new window when Vm starts without an Arduino location). If users cancel the auto prompt for a debugger license at start-up then the prompt will appear again each time they attempt to enable (Micro Debug) until they are licensed or the trial has started.
Prior to starting the trial, you can test all this by clearing or renaming the "HKCurrentUser\Software\Visual Micro\Locations\Arduino Application" registry key and starting vs or as6.
It's very useful that you make videos!! thanks. If you need license keys or other settings that allow you to more easily demonstrate the system then please drop me a pm.
Sorry for the quick dump but I want to fix the installer problem and finish the arduino 1.5 library work. The latest release will compile simple Due sketches as long as they don't #include and libs. I think that Atmel would like to see the Due being pushed so it's a great candidate for your example (possibly).