Creating an Application Distribution
If your IDL application is intended to be run in an installation with an IDL development license, you do not need to create an IDL distribution. Simply package up your application files (either .pro files or .sav files, and any necessary data files) and distribute it 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. Runtime distributions are created using the MAKE_RT procedure; the process is described in detail in Creating a Runtime Distribution.