DFSMShsm has invoked the MVS™ concatenated PARMLIB service to locate the requested ARCSTRxx or ARCCMDxx member. During the process, MVS concatenated PARMLIB services issued a message and DFSMShsm intercepted the message for retransmission to the DFSMShsm user or to one of the activity logs. msgtext is the actual MVS concatenated PARMLIB service message.