This element is not a relative path that you can edit. The program puts it for you. And if the path (or drive letter in my case) changes and you don't have live Internet connection it ruins unattended installs because it fails the update. If this attribute is corrected the way i do it, ketarin finds the file and it is all ok.
If you can show me a way that the previous location attribute in the saved XML can be turned into a relative path, it would be great.