VMS internals advice from one of the Grand Masters, Brian Schenkenberger,
aka vaxman@tmesis.com (even though axpman might be a better name!)

AAAREADME.TXT;1     GET-CALLER-COM-SRC.TXT;1                GET-FILENAME-OF-PREV-PROC-SRC.TXT;1
LOCK-OWNED-BY-PROC-Q.TXT;1              MODE-SWITCH-SUPER.TXT;1
OPEN-PROC-PERM-FILE-SRC.TXT;1           STACK-OFFSET-ADVICE.TXT;1