Fist all I would like to thank you for this great program which I have been using for many years. The work which the developer has put on it, is very much appreciated.
Now with my problem.
I recently updated to Windows 8.1 Pro 64bit.
I installed the latest version of XnView Classic 2.13.
I associated the file types following the guides I found here.
All the file types that XnView supports, were associated without any trouble.
The Icon files (.ico) were not associated so I had to do it manually using the "Default Programs" option in Control Panel.
Unfortunately, now all the Icon files are shown in the Windows Explorer with XnView's default program icon instead of displaying their own icons that contain.
This was not happening with XnView in Windows 7.
It was also not happening in Windows 8.1 when the Icons files were associated with Windows' default Photo Manager program. All the individual icons were shown correctly with their own image.
I uploaded two screenshots so that you can the understand the problem better:
Icons associated with Photo Manager

Icons associated with XnView Classic

I repeat that this is only happening with Win 8.1, I didnt have this kind of problem with Xnview in Win 7.
So is there a solution to this? Do you know how I can fix it so that the icon files are shown with their own internal image instead of Xnview's custom icon, like it used to do?
I really need this.