Installation of your application on the end user’s machine can be performed manually by the user, or it can be automated using an installer. There are a number of commercial applications available to help you build installers.
In order to avoid any possible conflicts with existing versions of IDL, you should warn your users NOT to install your application in the same directory as IDL x.x, where IDL x.x is the version used by your application.
L3Harris Geospatial Solutions’ Professional Services Group can create installation packages for your application. Contact your sales representative for additional information.