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> From: Buck Calabro > > Welcome to the world of software houses. > There is a positive benefit to seeing the new functions come out even if I > can't use them straightaway. It gives me ideas for ways to code my own > functions. The point being that I can hand-code a function today > and target > the V4R2 compiler, but when all my customers move to a more > modern release I > can use the new functionality. This is the most cogent reason for using service programs. By encapsulating new functionality of the language within procedures, it is a great way to support multiple OS versions. This involves an architecture where the highest level of any program is really just a thin shell that invokes various service programs. Joe
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