you can freely save anything you want in the root continuum folder. This file will not be overriden when you download the actual zone map, because that is stored in the continuum\zones\zonename directory. The desktop folder is stored under the windows user's folder, just like the My do!@#$%^&*ents folder. So if you save it to the desktop, its only going to be on that user's desktop and none of the other user's. As an option, you can save it in the "All Users" Desktop Directory and it will be available to all users. In order to upload, it has to be in the continuum root folder anyway, so why not save it there. It's in the Program Files directory, which is shared by all users.