I think that a customer *can* associate an ID with a started task (which is what I think was meant by "run under...ID") but there is not a requirement that they do so. It is necessary if you want to set up ID-based security profiles for the address space.
So don't think that ASXBUSR8/ASXBUSER necessarily has anything of interest. Nor that the JSAB necessarily exists or has anything of interest with respect to the user ID. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN