 Besides true environment variables, which are statically stored in the environment until changed or deleted, a number of pseudo-environment variables exist for batch processing.The so-called "replacement parameters" or "replaceable parameters" (Microsoft / IBM terminology) aka "replacement variables" (Digital Research / Novell / Caldera terminology) or "batch file parameters" (JP Software terminology) codice_432..codice_433 and codice_434 can be used to retrieve the calling parameters of a batchjob, see codice_435.In batchjobs, they can be retrieved just like environment variables, but are not actually stored in the environment.