Have you ever used the WRKREGINF command? It is the OS/400 command to Work with Registration Information. So, you ask, "What is Registration Information anyway?" Simply put, it is the registered exit points and exit programs that allow IBM, third-party vendors, and you to do some custom processing when an event occurs on your system. For example, IBM provides a registered exit point for the process of changing a user profile. This exit point allows you to do some custom ...

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