[FERMILAB.SYSUPD]

     The  DYVMSUPD  procedure  is  a  modified  version  of  the  VMSUPDATE
     procedure   used  to  install  layered  software.   Unlike  VMSUPDATE,
     DYVMSUPD is fast since the RX02 floppy disks (DYA1:) are used  as  the
     input.