Dynamically create list programs and call them from any High Level Language! Eliminate redundant coding and costs AND standardize your applications. Interactive OS/400 applications make extensive use of the F4 prompt key as users have become reliant on it for direction. With F4 List Processor create your list application one time and call it from any number of programs. Instead of hours spent on the competitive process of writing F4 display programs, use F4 List Processor to save time and money.