DxAutoInstaller is a tool provided by DevExpress that simplifies the installation and updating of DevExpress components. Version 22 of this tool would correspond to the installation and management of DevExpress products around the same version as the components you're interested in.
To get started with Devexpress VCL 18.2.6, follow these steps:
: Running the installer as an administrator allows you to select specific components for installation and choose whether to register them directly into your IDE. Official Downloads and Support VCL UI Components for Delphi & C++Builder - DevExpress