I am managing the installation of our product to be installed on our clients servers. The installation includes an application that is a service and I am installing that service with the command line through the installer.

The question is, when I install a new version of the application, the uninstall process I believe shuts down the service so it can remove the EXE for it. Do I have to UNINSTALL and REINSTALL the service, or do I need to just install the new application and just start the service as the new EXE for the service will be replaced?