These have nothing to do with the cart. This appears to be a dreamweaver issue with the notes and synchronization files Dreamweaver uses internally. I'm not sure of the cause but I don't think it has anything to do with our software. Usually dreamweaver creates those files when you update your site definition... maybe try changing your save folder in your site definition.. then click 'ok' and save it back to the correct folder and then I think Dreamweaver would recreate those files if they are missing.