ClickOnce is an application deployment technology that enables us to deploy applications that can be installed, run and updated with minimal interaction from the end user. In fact, the name ClickOnce comes from the ideal scenario, where each application could be installed with a single click.

Each ClickOnce application is deployed into its own self-contained area on the host computer, with no access to other applications, rather than in one of the standard program files folders that the other deployment technologies use. Furthermore, they only grant the exact security permissions required by the application and so, can generally also be installed by non-administrative users.

Another benefit of using ClickOnce is that it enables applications to be installed either from a web page, a network folder, or from physical media. We can also specify that applications installed using ClickOnce should check for updates at regular periods and can be easily updated by...