ClickOnce

When you pick the publish options from under the Build menu in Visual Studio 2010 while you have a WinForms app spun up, you are beginning the process of making a ClickOnce application installer which will end up holding a setup.exe for installing the WinForms. If told: "Application cannot be started. Contact the application vendor." ...after trying to run a setup.exe made from a ClickOnce process, delete the 2.0 folder at C:\Users\Tom_Jaeschke\AppData\Local\Apps\2.0 and then try again.