ZIPKEY V1.08 Eric Isaacson               REGISTRATION $ 30.00
DATA MAR90 ISAACSON ZIPKEY ZIP ZIPCODE
FILES: zipky108.sdn

Update

This is an experimental version of ZIPKEY, preliminary to the
V1.1 release.  I have added the ZIPKEY 7 command to uninstall
ZIPKEY  from  memory,  a  zip-from-last  keystrokes option to
allow usage within graphic programs,  and  I  have  corrected
some incompatibilities with other programs.

ZIPKEY is  a  complete city-level directory of 5-digit United
States zipcodes,  combined  with   a   keyboard   enhancement
program.   The  goal of ZIPKEY is to provide enough power and
flexibility   so   that   no   one   with   an   IBM-PC   (or
hardware-compatible   computer)   will  ever  again  have  to
manually type in the name of a United States city or town (at
least not one big enough to have its own zipcode).

When run  as  an  ordinary  program,  ZIPKEY  allows  you  to
instantly access any of the 43000+ zipcodes in the directory,
searching  by  zipcode, state-and-city, or city-only.  If you
want to use ZIPKEY just to occasionally look  up  a  zipcode,
you simply choose main-menu option 2 and follow the prompts.

ZIPKEY achieves  its full power when installed permanently in
memory.  In  this  "memory-resident"  mode,  you  can  invoke
ZIPKEY  from  within  any  other program (a word processor, a
data-base manager,  etc.).   You  can  type  just  a  5-digit
zipcode, and ZIPKEY will fool the program you're running into
thinking that you have typed any or all of the following: the
city  name,  the state name and/or abbreviation, the zipcode,
and  any  other  combination  of  fixed   keystrokes.    This
"keystroke output" can be in any format that you wish.

ZIPKEY is  completely  configurable.   You  can  specify  any
combination of keystrokes (the  "hotkey")  that  will  invoke
ZIPKEY  when  you're  running  another program.  You can also
specify alternate  hotkeys  to  allow  differing  sources  of
zipcode  specifications (repeat the last zipcode, use a fixed
sequence of first  digits,  or  get  the  zipcode  from  your
screen),  and/or  a  differing  format  when ZIPKEY feeds the
city/state/zip back through your keyboard.  You may  have  up
to  99  different hotkeys.  Your configuration is stored in a
disk file, which is automatically read by ZIPKEY whenever  it
is invoked.

ZIPKEY has  a  sophisticated abbreviation algorithm, allowing
you to specify a limit to the length of  the  city  name,  so
that it will fit into a fixed field.

ZIPKEY's database  is  based  on  data from numerous sources,
including the U.S.  Postal Service.  It has been  extensively
cross-checked  to  ensure accuracy and consistency.  The data
is highly compressed, so it won't occupy very much  space  on
your   disk   or  in  memory.   The  compression  method  was
custom-designed for  this  database,  providing  for  maximum
compaction  while retaining instant access.  It occupies less
than 128K bytes (less than 3 bytes per entry),  small  enough
to  allow  installation of the data base in either LIM-EMS or
main memory.  But access to the data is fast enough  so  that
it is perfectly reasonable to leave the database on your hard
or RAM disk.

(SDA format Copyright 1990 SDN Project for SDNet/Works! (sm))