<<Craig, have you updated graphic card drivers lately? >>
 
Yes, last week.
 
<<I had to unauthorise and re-authorise my PC following the Win 10 upgrade to 1709 before it would work. Good luck. >>
 
Yes, but I can’t authorize or re-authorize without the online installer working.
 
<<In my case, seems that the wireless security settings indeed are the issue >>
 
This sounded promising, but I get the same issue with an Ethernet connection.
 
I wonder if this is similar to the 0 byte DLL issue, where something that the installer wants to see no longer exists.

Anderton
<<Craig, have you updated graphic card drivers lately? >>
 
Yes, last week.
 
[...]

I meant change in any direction about graphic drivers. I saw at included by you error message some errors about calls to functions related to GUI so it was my guess it could be related to graphic API change.

I know you checked it ... but I sounds like the windows firewall/security??
 
Wish I could help.

Craig....are you using Samples/Kits from a previous install of AD. I.e. pointing the installer to the directory of Samples/Kits.
I do it that way so I do not need to download as much when doing new pc setup/reinstall.....however I had similar error (Lua...blabla) once and only got rid after downloading all Kits from scratch.

this seems to be similar http://forum.cakewalk.com/Getting-this-XLN-error-when-I-open-X1-or-Platinum-m3278507.aspx

I wonder if this is similar to the 0 byte DLL issue, where something that the installer wants to see no longer exists.
 
That's what I was getting at in my last post. Yet another W10 issue. It will go down in history as W10 , the OS that ate my dll's. 

Cactus Music
I wonder if this is similar to the 0 byte DLL issue, where something that the installer wants to see no longer exists.
 
That's what I was getting at in my last post. Yet another W10 issue. It will go down in history as W10 , the OS that ate my dll's. 

I tried replacing all the files in the Program Data folder specified by the error message with files from a different machine...still no go.
 
Still no response from XLN.
 
Could one of you smart Windows people advise me whether I should just go into the registry and blitz everything that belongs specifically to XLN audio? Think that might help?

Anderton
Could one of you smart Windows people advise me whether I should just go into the registry and blitz everything that belongs specifically to XLN audio? Think that might help?

It's worth a try, and shouldn't cause any problems. I would uninstall just the XLN installer, not any instruments, go in the registry and delete any keys related to the XLN installer, then reinstall it.
 
EDIT: You can also use the free Revo Uninstaller: https://www.revouninstall...ler_free_download.html

Anderton
Could one of you smart Windows people advise me whether I should just go into the registry and blitz everything that belongs specifically to XLN audio? Think that might help?

I've never had to do it with XLN, but my suggestion would be:
1) uninstall everything XLN with the uninstallers they provide.
2) Reboot
3) delete any left-over files in Program Files, ProgramData, and users/<you>/AppData/ <find everything>.
On my system I have: AppData/Roaming/XLN Cloud Sync and AppData/Roaming/XLN Online Installer.
Also: ProgramData/XLN Audio
4) delete any registry entries containing XLN
5) Reboot and reinstall.
 
Fortunately "XLN" is easy to search for in both regedit and (File) Explorer.
 
Best of luck. Feel free to post or pm with specific questions.
 
Allan
 
 

Well, the plot thickens. I just noticed that AD2 is now in Demo mode? Say's I have 10 days to register?? And here I thought my W10 1709 update went without a hitch. 
It certainly didn't show that before the update. 
So I also need to contact support. There is no way to get at the authorization window. It only shows  after a Windows update changes you computer ID or when you install to a new computer. Opening the on line installer shows all is good and I'm up to date and using the correct computer.  
This has got to be a bug in the new installer and might be your issue in a round about way.