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  INTRODUCTION

  Welcome to PKZIP 2.0.  This release continues the high performance
  tradition of previous versions of PKZIP, with a host of new features.  In
  addition to an improved reference section, this manual contains a
  step-by-step tutorial.  By following the Installation, Tutorial and
  Advanced Features sections in order you will learn how to use PKZIP to
  your best advantage.  Use the Command Reference sections in your
  day-to-day use of PKZIP.  Convenient indices to these sections are printed
  on the inside of the front and back covers.

  PKZIP is a powerful program.  It has many options, but it is possible to
  make use of PKZIP by knowing only a few simple options.  You can start out
  with a basic understanding and learn more if and when you need to use
  additional features.

  It is recommended that you first read through this introduction and the
  installation procedure.  Then perform the installation and work through
  the Tutorial in order.

  Follow up with the Advanced Features section of the Tutorial.  You should
  not attempt to use the PKZIP Backup Guide until you have completed (and
  understand) the entire tutorial.

  Conventions

  This manual follows several conventions for clarity and to help you find
  information quickly.  Text that you would see on your computer screen is
  shown here in a "typewriter" typeface.  Text that would be entered by you
  in these examples is shown in bold:

     C:\DOS>dir

  Bold text is also used for emphasis and to point out terms which are then
  shown in vocabulary boxes.

  Vocabulary

  Terms that are felt to be technical enough to require explanation are
  listed in convenient vocabulary blocks.  These vocabulary terms are with
  the first instance of the word, so that you may read them and continue on
  without needing to search for the glossary.  This block is an example.

  Anything that we want to be sure you don't miss will be pointed out in the
  same manner as this paragraph.

  Command Syntax

  Standard command specification syntax is used throughout the Command
  Reference section.  This is used to differentiate between command option
  parameters which are optional or mandatory, and to indicate when certain
  options may be combined:

  < >  Angle Brackets are used to indicate a command option parameter which
       must be present.  The option parameter will follow immediately after
       the option with no space.

  [ ]  Square Brackets indicate a command option parameter which is not
       mandatory.

  , | If there are several possible options which may be used in the
      position indicated by the angle or square brackets, they will be
      separated by either a Comma or a Vertical Bar.  If options are
      separated by a comma, then more than one of the options may be used
      simultaneously.  If they are separated by a vertical bar, the options
      are exclusive of one another and only one may be used at a time.

  Following are some abstract examples of how these syntax rules are
  applied.

  Syntax               Valid Entries
  ---------------------------------------------------
  -z<a,b,c>           -za, -zab, -zac, -zbc, -zabc

  -z<a|b|c>           -za, -zb, -zc

  -z[a,b]             -za, -zb, -zab, -z

  -z<a|b,c>           -za, -zb, -zac, -zbc
                      -zab or -zabc would be invalid.