A program can obtain an ALET through the ALESERV macro with the ADD and ADDPASN parameters. Or, it can receive an ALET from another program.

A program can obtain a STOKEN through DSPSERV CREATE, ALESERV EXTRACT, or ALESERV EXTRACTH. Or, it can receive a STOKEN from another program.

A program can pass an ALET or a STOKEN to another program in the same way it passes other parameter data. MVS™ has certain rules for passing ALETs, as described in Rules for passing ALETs. It does not have rules for passing STOKENs. However, the ALESERV service determines whether the receiving program can add an entry for the address/data space that a STOKEN represents.