A list-owner can not add or change another's LISTSERV password. A list-owner (who remembers their own password) CAN update the list's password: 1) GET listname (NOL HEAD 2) receive file 3) update headers in the file with list definition keyword * PW= new_pass_wod 4) send the file back to: LISTSERV with the appropriate prepended PUT command that specifies the OLD list password or the list-owner's current personal password PUT listname LIST PW=old_pass_wd ... rest of headers (no signature block) 5) pray.