>It's the same as Win7
>
>In the windows explorer, rightclick on an xml file, Open with
>
>You then have a list of possibilities and also an option 'Choose default program'

Yes, that is the thing I do not understand. Doing that will make it ok from Windows Explorer. But, from Internet Explorer, I am loosing the Open option when clicking on a download which sends me a XML file and just have the Save as option. If I do not assign this default program, it will allow me to open it directly. This is what which seems to have changed in Windows 8.1 Can you confirm me if in Windows 7, from Internet Explorer, when downloading a XML file that you also have the Open option?