If your IDL application will be run in an installation with an IDL development license, you do not need to create an IDL distribution. Just package your application files (either .pro files or .sav files, and any necessary data files) and distribute them to your users along with instructions describing how to install and launch the application.

If your application will be run by users who do not already have an IDL installation, or who do not have the proper IDL version, you can create and distribute a runtime application distribution using the MAKE_RT procedure.