>IBM provides a programming interface for intercepting SVC calls called SVC screening.
I agree. And it is documented that the purpose of SVC screening is to do authorization checking. Front-ending SVCs is also "provided" (SVCUPDTE) but that does not mean that you are able to assume that a particular caller is using an SVC to invoke a particular interface. The abuse of SVC screening and (more often) SVCUPDTE are frequent causes of customer outages. Front-ending PCs will never be supported. If you can make a case for an exit out of particular PCs, then make it. MIM did. And that is why GRS has exits.. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
