You have to distinguish component, modules and plugins.
When a component is not defined, this is more critical because most of the component use MySQL tables to store their data. Therefore, we need to describe in the JMS tool which MySQL tables must be created. You can send us the extension in the attachement of an email.
The email is present in the "contact us".
www.jms2win.com/en/contact-us
Concerning the modules and the plugins, this is less critical because in most cases, they are using the MySQL tables used by the component. Therefore you can frequently just define them. Just ensure that the component is correctly installed and working.