Andrew, The IOVT is not a GUPI - however - if you look at offset x'18' into the IOVT - and follow the address - you should come to the CDA control block and you should be able to glean the required info.
Normal caveats apply for processing control blocks like this (ie PTFs/FMIDs can change the offsets without any warning and your program will then get garbage or abend). Rob Scott Rocket Software http://www.rs.com/portfolio/mxi/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

