You can dynamically update a COBOL module without having to restart the batch application server.
The COBOL module DLL is loaded by the ILContainer upon first invocation of the COBOL procedure, and is released by the ILContainer when the ILContainer is destroyed, which is at the end of the batch step.
This function enables you to dynamically update the COBOL module between batch jobs or steps without having to restart the batch application server. The updated COBOL module is dynamically loaded by the ILContainer that is created during the next batch step.