The KingswaySoft SSIS Dynamics Toolkit is a custom SSIS tool that is used for authenticating and interacting with Dynamics 365 in an SSIS package.
To design SSIS packages, you can install the toolkit locally to your workstaiton and use a development license. This will restrict your capabilities to running directly in Visual Studio.
The main license is stored on the APX Database server. The KingswaySoft license manager is an application that runs on the server and houses this license. Kingswaysoft must be notified when migrating to a new server.