The hook produced an 0C4 but that served the purpose. The TCB chain is IEEVAR00->IEAVTSDT->IEEPRWI2. The last module is, unsurprisingly, involved in STC initialisation and links to the exit.
Robin ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN