Allow PI Server components to be removed at installation time
Currently, when you run the PI Server install kit to perform an upgrade, existing PI Server components cannot be unselected, and so they are upgraded. This gives the impression that they cannot be uninstalled, but they can actually be uninstalled by modifying the installation in Programs And Features in the Control Panel. This is unintuitive.
Please allow PI Server components to be uninstalled at the same time as upgrading other PI Server components, otherwise many of the legacy components will continue to live unnecessarily in many customers' PI systems.