How do you uninstall a ClickOnce application that doesn't appear in Add/Remove Programs?

I'm getting the following error when I try to install one of my ClickOnce applications:

An application for this deployment is already installed with a different application identity.

I understand this is because I have used the same Application Identity but moved the deployment URL. I'd like to just uninstall the e开发者_如何学运维xisting ClickOnce application and install from the new deployment location, however the existing application does not show in Add/Remove Programs.

How can I remove the existing ClickOnce application so that it will let me install from the new location?

Failing to find another alternative you can try the mage tool with the -cc switch. Be advised that this clears the downloaded application cache of all online-only applications.