Installation plugins are responsible for making the necessary changes to your application(s) after successfully creating or renewing a certificate. Currently there are two of these plugins.
More than one plugin can run by choosing them in order of execution. In interactive
mode you will be asked, for unattended mode you can provide a comma separated list,
e.g. --installation certificatestore,pemfiles
In default settings mode the default installation plugin is IIS Web. This can be changed in settings.json.
In full options and unattended modes there are no default installation steps,
which is equivalent to --installation none. This can be changed in settings.json.
You can to explicitly choose them from the interface or using the --installation switch.