I am deploying a click-once windows app as online-only. It works fine for most clients but one client keeps getting an old version of the click-once windows app. When he hits the url to install/launch the app, it never downloads the newest version. I searched his pc for the previous versions and he has more than 6 old versions. I thought at most only two versions of click-once app will be kept on client pc at any time. Is there a way to completely uninstall the click-once from his pc? Since this is online-only, the app is not showing up in Add/Remove Programs.