Delta Save version 7.4 requires the following products/versions:
Adabas version 7.4
Adabas Online System (AOS) demo version delivered with Adabas version 7.4 or alternatively, the full version AOS selectable unit. The load module AOSASM from the Adabas 7.4 load library must be included in the link of the Natural nucleus.
If you want to use online facilities to restart an interrupted online save operation after a system or other user ABEND (see section Restarting an Interrupted Save Operation), you will need to use the selectable unit AOS.