When you build a VSTO add-in project, it installs the add-in on your development computer. Even if you close that project and start another, or even close Visual Studio entirely, all add-ins you have built will still run when you start the Office application
on that computer. If you're not expecting the add-in to run, you might be surprized by what you see the next time you open the application or test a new project. This video shows how to easily uninstall add-ins from your development computer after you build
them if you don't want them to run any more. ![]()
