It sounds like you are saying that these programs ran fine in the
morning and started failing later in the day?

If Keven's suggestion solves your problem, then the cause may have
something to do with a UDC or command file or menu system or MPEXMGR
file getting modified to remove some parent program.

Keven Miller wrote:
>
> > **** INTRINSIC ABORT
> > ACTIVATION OF MAIN PROCESS NOT ALLOWED   (ACTIVATE ERROR 21)
> > ACTIVATE intrinsic.
>
> This error comes from calling the ACTIVATE intrinsic with pin 0, meaning my
> father process, AND
> the father process is the CI.  This action is not supported in MPE.
>
> If you run this same program in QEDIT or another program that supports son
> processes, it should work.
>
> +=====================================
>  Keven Miller   KC7LYD
>  [log in to unmask]   (Salt Lake City, Utah, USA)
> +=====================================