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Beware file for IBMCOM

         COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1982

     THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY  BE  USED
     AND COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE
     AND WITH THE INCLUSION OF THE ABOVE COPYRIGHT NOTICE.   THIS
     SOFTWARE  OR ANY OTHER COPIES THEREOF MAY NOT BE PROVIDED OR
     OTHERWISE MADE AVAILABLE TO ANY OTHER PERSON.  NO  TITLE  TO
     AND OWNERSHIP OF THE SOFTWARE IS HEREBY TRANSFERRED.

     THE INFORMATION  IN  THIS  SOFTWARE  IS  SUBJECT  TO  CHANGE
     WITHOUT  NOTICE  AND SHOULD NOT BE CONSTRUED AS A COMMITMENT
     BY DIGITAL EQUIPMENT CORPORATION.

     DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY
     OF  ITS  SOFTWARE  ON  EQUIPMENT  WHICH  IS  NOT SUPPLIED BY
     DIGITAL.


     1.  Release 5.1 of TOPS-20 and 4.2 of GALAXY  must  be  installed
         before attempting to install IBMCOM on the KL.

     2.  The regular distribution tapes for TOPS-20 5.1 contain LPTSPL
         and CDRIVE built with the correct versions of D60JSY.

     3.  In IBMCOM, since communication is expensive, it is  sometimes
         preferred  to  not  have SPRINT delete a recently transmitted
         card  deck.   To  help  with  this  situation  the  following
         unsupported patch is provided:

         In order to assure that SPRINT does not delete files that  do
         not  appear to have a correct $JOB card replace the following
         lines in SPRINT:

                PUSHJ   P,PROCER                ; Do ABORT processing
         EOF.1: PUSHJ   P,RELREQ                ; Send "release" to QUASAR
                MOVE    S1,L.IFN                ; Release the input file

         with

                PUSHJ   P,PROCER                ; Do ABORT processing
                PUSHJ   P,RELREQ                ; Send "release" to QUASAR
                MOVE    S1,L.IFN                ; Release the input file
                PJRST   F%REL                   ; and do not delete!
         EOF.1: PUSHJ   P,RELREQ                ; Send "release" to QUASAR
                MOVE    S1,L.IFN                ; Release the input file

         Please note:  with this patch, all decks without  $JOB  cards
         will  be  retained.  The system administrator should be aware
         that this could  allow  a  malicious  user  to  fill  up  the
         PS:<SPOOL> area with trash files.

                                                                Page 2


     4.  A new system logical name, D60:, must be defined.  The IBMCOM
         spoolers  use  this logical name for looking up signon files,
         signoff files, and for creating  input  files.   Placing  the
         following in the system CONFIG file is a convenient method:

              DEFINE D60:  PS:<DN60>

         This makes the default for D60:  the same directory  used  in
         release  4.0.   D60:   can,  of  course,  be  defined  as any
         directory  on  any  structure  normally  mounted,   if   more
         convenient  for  operations.   But  if  the structure used is
         non-PS:, the job should do a mount of  the  structure  before
         starting the spooler.