Hi. The keys are read in through the Common Services CAS9 proc found in your CAW0PROC library. The proc executes PGM=CAIRIM which reads in the LMP keys from the Common Services CAW0OPTN dataset which contains a member name of KEYS. The KEYS member contains the LMP codes for File Master and all other CA products that require a key. Many sites choose to execute the CAS9 proc as a started task during an IPL.