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      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  301

      34.1  Microsoft Windows

      Windows lacks a preemptive scheduler.  Other programs can seize the
      computer for long periods, rendering background communications
      impossible.  When protocol file transfers (especially uploads) fail,
      run them in the foreground or set the other program to very relaxed
      timing.

      Windows 3.1 is known to disable the 16550A FIFO.  Upgrade to 3.11 or
      use an aftermarker comm driver replacement.

      You MUST use a 16550A FIFO UART if you are using windows, even if
      ZCOMM runs just fine under DOS with a plain UART.

      Set ZCOMM and the modem to use hardware flow control.

      Add the following lines to your system.ini file in the [386enh]
      section, where n is replaced by the COMn digit:

           MinTimeslice=20      WinTimeslice=100,50      COMnFIFO=1
           COMnBuffer=4096      ComBoostTime=6 (or more?)

      For best results when running ZCOMM in the MS-DOS shell, try the
      "Exclusive" and "Background" items in the "Settings" menu.  Also,
      bring up the "Control Panel" "386 Enhanced" menu, and set the "Minimum
      Timeslice" to a smaller values such as 2.

      OS/2 and Chicago provide better multitasking than Windows 3.1.

      34.2  DESQview

      DESQview 2.0 and 2.25 on 286 and 386 machines provids a congenial
      environment for ZCOMM.  DESQview versions between 2.0 and 2.25 should
      not be used.

      The Allow Close Window Command Advanced Option should be set to N,
      allowing ZCOMM to restore the serial port to a safe configuration when
      exiting.

      34.3  VM

      According to Marshall Sutherland, Be sure to set IOPL3 mode to YES.











      (C) 1994 Omen Tech Inc                           Chapter 34 ASCII Code


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  302

      35.  1968 ASCII CODE

      X3.64     Dec  Oct  Hex  EBCDIC

      0/0  000  000  00   00   NUL  ^@   Null, Ctrl-@
      0/1  001  001  01   01   SOH  ^A   Start of Header
      0/2  002  002  02   02   STX  ^B   Start of Text
      0/3  003  003  03   03   ETX  ^C   End of Text
      0/4  004  004  04   37   EOT  ^D   End of Transmission
      0/5  005  005  05   2D   ENQ  ^E   Enquire, WRU
      0/6  006  006  06   2E   ACK  ^F   HEREIS
      0/7  007  007  07   2F   BEL  ^G   Bell
      0/8  008  010  08   16   BS   ^H   Backspace, \b
      0/9  009  011  09   05   HT   ^I   TAB, \t
      0/10 010  012  0A   25   LF   ^J   Newline, NL, \n
      0/11 011  013  0B   0B   VT   ^K   Vertical Tab
      0/12 012  014  0C   0C   FF   ^L   Form Feed, \f
      0/13 013  015  0D   0D   CR   ^M   Return, \r,
      0/14 014  016  0E   0E   SO   ^N   Shift Out
      0/15 015  017  0F   0F   SI   ^O   Shift in

      1/0  016  020  10   10   DLE  ^P
      1/1  017  021  11   11   DC1  ^Q   XON, Start Reader
      1/2  018  022  12   12   DC2  ^R   DC2, Tape Punch ON
      1/3  019  023  13   13   DC3  ^S   XOFF, Stop Reader
      1/4  020  024  14   3C   DC4  ^T   DC4, Tape Punch OFF
      1/5  021  025  15   3D   NAK  ^U   Nak
      1/6  022  026  16   32   SYN  ^V   Sync
      1/7  023  027  17   26   ETB  ^W   End of Tape Block
      1/8  024  030  18   18   CAN  ^X   Cancel
      1/9  025  031  19   19   EM   ^Y   End of Medium
      1/10 026  032  1A   3F   SUB  ^Z   CP/M End of File
      1/11 027  033  1B   27   ESC  ^[   Escape, \E
      1/12 028  034  1C   1C   FS   ^\   File Separator
      1/13 029  035  1D   1D   GS   ^]   Group Separator
      1/14 030  036  1E   1E   RS   ^^   Record Separator
      1/15 031  037  1F   1F   US   ^_   Unit Separator
















      (C) 1994 Omen Tech Inc                           Chapter 35 ASCII Code


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  303

      X3.64     Dec  Oct  Hex  EBCDIC

      2/0  032  040  20   40   SP   Space
      2/1  033  041  21   5A   !    Bang, exclamation mark
      2/2  034  042  22   7F   "    Double Quote
      2/3  035  043  23   7B   #
      2/4  036  044  24   5B   $
      2/5  037  045  25   6C   %
      2/6  038  046  26   50   &
      2/7  039  047  27   7D   '    Apostrophe, Single Quote
      2/8  040  050  28   4D   (
      2/9  041  051  29   5D   )
      2/10 042  052  2A   5C   *    Splat, Star, Nathan
      2/11 043  053  2B   4E   +
      2/12 044  054  2C   6B   ,    Comma
      2/13 045  055  2D   60   -
      2/14 046  056  2E   4B   .    Period
      2/15 047  057  2F   61   /    Slash, Stroke

      3/0  048  060  30   F0   0
      3/1  049  061  31   F1   1
      3/2  050  062  32   F2   2
      3/3  051  063  33   F3   3
      3/4  052  064  34   F4   4
      3/5  053  065  35   F5   5
      3/6  054  066  36   F6   6
      3/7  055  067  37   F7   7
      3/8  056  070  38   F8   8
      3/9  057  071  39   F9   9
      3/10 058  072  3A   7A   :
      3/11 059  073  3B   5E   ;
      3/12 060  074  3C   4C   <
      3/13 061  075  3D   7E   =
      3/14 062  076  3E   6E   >
      3/15 063  077  3F   6F   ?    Question Mark, Query


















      (C) 1994 Omen Tech Inc                           Chapter 35 ASCII Code


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  304

      X3.64     Dec  Oct  Hex  EBCDIC

      4/0  064  100  40   7C   @    Commercial AT
      4/1  065  101  41   C1   A
      4/2  066  102  42   C2   B
      4/3  067  103  43   C3   C
      4/4  068  104  44   C4   D
      4/5  069  105  45   C5   E
      4/6  070  106  46   C6   F
      4/7  071  107  47   C7   G
      4/8  072  110  48   C8   H
      4/9  073  111  49   C9   I
      4/10 074  112  4A   D1   J
      4/11 075  113  4B   D2   K
      4/12 076  114  4C   D3   L
      4/13 077  115  4D   D4   M
      4/14 078  116  4E   D5   N
      4/15 079  117  4F   D6   O

      5/0  080  120  50   D7   P
      5/1  081  121  51   D8   Q
      5/2  082  122  52   D9   R
      5/3  083  123  53   E2   S
      5/4  084  124  54   E3   T
      5/5  085  125  55   E4   U
      5/6  086  126  56   E5   V
      5/7  087  127  57   E6   W
      5/8  088  130  58   E7   X
      5/9  089  131  59   E8   Y
      5/10 090  132  5A   E9   Z
      5/11 091  133  5B   AD   [    Left square bracket
      5/12 092  134  5C   E0   \    Backslash
      5/13 093  135  5D   BD   ]    Right Square Bracket
      5/14 094  136  5E   5F   ^    Circumflex, Up Arrow, Hat
      5/15 095  137  5F   6D   _    Underscore, Underline[1]












      __________

       1. 5/16    Back Arrow on older codes



      (C) 1994 Omen Tech Inc                           Chapter 35 ASCII Code


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  305

      X3.64     Dec  Oct  Hex  EBCDIC

      6/0  096  140  60   79   `    Accent Grave
      6/1  097  141  61   81   a
      6/2  098  142  62   82   b
      6/3  099  143  63   83   c
      6/4  100  144  64   84   d
      6/5  101  145  65   85   e
      6/6  102  146  66   86   f
      6/7  103  147  67   87   g
      6/8  104  150  68   88   h
      6/9  105  151  69   89   i
      6/10 106  152  6A   91   j
      6/11 107  153  6B   92   k
      6/12 108  154  6C   93   l
      6/13 109  155  6D   94   m
      6/14 110  156  6E   95   n
      6/15 111  157  6F   96   o

      7/0  112  160  70   97   p
      7/1  113  161  71   98   q
      7/2  114  162  72   99   r
      7/3  115  163  73   A2   s
      7/4  116  164  74   A3   t
      7/5  117  165  75   A4   u
      7/6  118  166  76   A5   v
      7/7  119  167  77   A6   w
      7/8  120  170  78   A7   x
      7/9  121  171  79   A8   y
      7/10 122  172  7A   A9   z
      7/11 123  173  7B   C0   {    Left Brace
      7/12 124  174  7C   4F   |    Vertical Bar, Pipe[2]
      7/13 125  175  7D   D0   }    Right Brace, ALTMODE
      7/14 126  176  7E   7E   ~    Tilde, Squiggle [3]
      7/15 127  177  7F   07   ^?   DEL, RUBOUT










      __________

       2. "Confirm" on some older systems

       3. Escape on some older systems



      (C) 1994 Omen Tech Inc                      Chapter 35 Acknowledgments


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  306

      36.  ACKNOWLEDGMENTS

      ZCOMM ("Yet Another Modem") could not have evolved to its current
      level of power, convenience, and refinement without help, advice, and
      other contributions from many kindred souls over the years.

      Digital Equipment Corporation developed the PDP-8, PDP-10, and PDP-11
      computers with which I first learned practical data communications
      techniques.  Ray Zapp and Bob Chesney used the first forerunners of
      Zcomm.  Ward Christensen developed the MODEM (XMODEM) file transfer
      protocol and the MODEM series programs.  Dennis M. Ritchie developed
      the C programming language.  Leor Zohlman wrote BDS C, the cuspiest C
      compiler for CP/M, without which CP/M Yam might have been written in
      Pascal (if at all).  Jack M. Wierda and Roderick W. Hart wrote
      CMODEM13.C, the distant ancestor of Zcomm's XMODEM and YMODEM protocol
      handler.  32 bit CRC code courtesy Gary S. Brown.  Directory creation
      code from John Gilmore's PD TAR program.  Regular expression code
      written by Henry Spencer, copyright 1986 by University of Toronto.
      Richard Greenlaw wrote SQueeze and UnSQueese, Huffman compression
      programs and wildcard filename expansion routines.  Rahul Dhesi wrote
      the ZOO archive program used to compress some files.  Filename
      expansion routines used on some flavors is based on code by Guido van
      Rossum CWI, Amsterdam <[e-mail]>.  Gordon Collett, CDI VP of
      Engineering, supported the development and public domain distribution
      of 8 bit YAM.  Microsoft Corporation developed MS-DOS, providing
      interesting debugging experiences.  Pacific Northwest Bell regularly
      provides protocol stress testing.  Bob Richardson, Carl Raff, Scott
      Lowe, Ken Brassler, authored documentation describing Compuserve's
      mysterious A and B protocols.  Jeff Martin, Paul Homchick, Paul
      Bingman, David Sternlight, Big Red, and Barefoot John provided
      encouragement and suggestions.  Charles McGuinness wrote COMSH, which
      provided some ideas for ZCOMM's script facility.  Stephen Satchell
      wrote much of the original Cribsheet.  James R. Butler provided
      numerous suggestions for improving this Manual.  Numerous script
      examples shown here were written by Earle Robinson, author of the
      ejryam scripts for accessing CompuServe.

      The ZCOMM flash-up help file compiler and display program were
      originated by Seaquest Software, Pete Mackie President.

      The Phomast script and documentation are written by Michael R. Ash.

      for ComputingoActivities.evKERMIT is availablebforUmanyrsystemsnfor
      organizations, suchfasmDECUSmand SHARE.omColumbia University holds the
      warranthinoanyhwayEtheTKERMITcsoftwareunoratheiaccuracydofsanytrelated
      documentation,nordColumbia UniversitysacknowledgeManypliabilityr
      resulting from program or documentation errors.
      CyberneticeDataiRecovery(TM),(ZMODEM-90(TM),nMobyTurbo(TM),(ZMODEM
      Containment(TM),,FulleTimeeCapture(TM),oTrue(YMODEM(TM),
      CryptoScript(TM), andyTurboDial(TM)saredOmenrTechnology trademarks.
      trademark ofaDigitaloResearch.riDECnand VT100aare trademarks/ofis a


      (C) 1994 Omen Tech Inc                      Chapter 36 Acknowledgments


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  307

      OfficelSystems.ntKERMITrisiantrademarkeofiHensonaAssociates,uInc.,deck
      TopViewsisfaTtrademark ofoIBM.MSTWXSissaatrademarkkoffTeletypeft.
      Corporation.  Unix is a trademark of Western Electric.

      This document is Copyright 1984, 1994   Omen Technology Incorporated,
      All Rights Reserved.  It was formatted 3-21-95.















































      (C) 1994 Omen Tech Inc                      Chapter 98 Acknowledgments


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  308

      99.  MISSING CHAPTERS

      Chapter 99 is a psuedo chapter number referring to chapters of the
      Pro-YAM User Manual[1] that are not included in the ZCOMM line printer
      edition.










































      __________

       1. Supplied with ZCOMM registration.



      (C) 1994 Omen Tech Inc                      Chapter 99 Acknowledgments


      Version 18.18 TurboDial 2.41            Universal Line Printer Edition
      ZCOMM User Manual                                                  309

      100.  CROSS REFERENCE INDEX




















































      (C) 1994 Omen Tech Inc                     Chapter 100 Acknowledgments





                                     CONTENTS



        1.  INTRODUCTION...............................................    2


        2.  ZCOMM REGISTRATION.........................................    8


        3.  ZCOMM's Big Brother........................................   10


        4.  FLAVORS OF Professional-YAM................................   12


        5.  DESIGN PHILOSOPHY..........................................   14


        6.  ROSETTA STONE..............................................   16


        7.  INSTALLING ZCOMM...........................................   22


        8.  UNLEASHING THE MODEM.......................................   25


        9.  YOUR TELEPHONE DIRECTORY...................................   40


       10.  HANDS ON TUTORIAL..........................................   46


       11.  ACCESSING COMPUTER SYSTEMS.................................   50


       12.  FILE NAMES Good and Bad....................................   52


       13.  PROTOCOL FILE TRANSFERS....................................   55


       14.  MESSAGE TRANSFERS..........................................   81


       15.  FLOW CONTROL...............................................   86


       16.  RUNNING ZCOMM..............................................   90









       17.  OUTLINE OF COMMANDS........................................   97


       18.  SPECIAL KEYS...............................................  102


       19.  MAIN COMMANDS..............................................  105


       20.  Protocol File Transfer OPTIONS.............................  171


       21.  TERM FUNCTION..............................................  180


       22.  Term Function OPTIONS......................................  187


       23.  REVIEW FUNCTION............................................  201


       24.  NUMERIC PARAMETERS.........................................  205


       25.  STRING PARAMETERS..........................................  224


       26.  CHARACTER ESCAPES..........................................  242


       27.  TEST CONDITIONS (if, on, while commands)...................  250


       28.  HOST OPERATION / REMOTE CONTROL............................  260


       29.  TERMINAL (CRT) EMULATION...................................  267


       30.  LOGGING ENTRIES............................................  273


       31.  ERROR (and other) MESSAGES.................................  276


       32.  HINTS AND KINKS............................................  289


       33.  HARDWARE/SOFTWARE COMPATIBILITY............................  292










       34.  BACKGROUND OPERATION.......................................  300


       35.  1968 ASCII CODE............................................  302


       36.  ACKNOWLEDGMENTS............................................  306


       99.  MISSING CHAPTERS...........................................  308


      100.  CROSS REFERENCE INDEX......................................  309