SUPPLEMENTARY FILES FOR CD-ROM 2B

Economic Censuses CD-ROM 2B has two known errors.

1.  The SVC87KB.ndx is bad on both discs 1D and 2B, so that when adding kind-
    of-business labels to service data, some of the labels do not link
    correctly to the appropriate code.  Inside CD2BSUPL.EXE is a replacement
    that should be put in your default directory.

2.  In the MC87LZ2 file, the summaries for a number of New York ZIPs
    (11804-12543) are garbled.  While it is not practical to supply a complete
    replacement file for MC87LZ2.dbf, the CD2BSUPL.EXE file gives you two
    alternatives, depending on how much hard disk space you are willing to
    devote to the replacement.  MC87LZ2N.dbf includes all manufacturing total
    and 2-digit summaries for New York state, while MC87LZ2X.dbf includes only
    those summaries for affected ZIP codes.

    If you are using the manufactures zip data only at the 4-digit SIC level,
    so that you are working with MC87LZ4.dbf, then you do not have to worry
    about this problem.

To install the contents of CD2DSUPL for use with EXTRACT:

1.  Make your work directory on your hard disk the default, and run the
    CD2BSUPL program.  For example, if your work directory is C:\EXTRACT\WORK
    and CD2BSUPL.EXE is on your A: drive, you would type

          C:
          CD\EXTRACT\WORK
          A:CD2BSUPL

2.  Now copy SVC87KB.ndx into the default directory you use when you start
    EXTRACT

          COPY SVC87KB.NDX C:\EXTRACT

3.  Many users will choose to retain only one version of the replacement files
    for the missing ZIP codes.  MC87LZ2X.dbf, with only the affected ZIPs,
    requires only 58K of hard disk space, whereas MC87LZ2N.dbf requires more
    than 500K.  If you want to make statewide comparisons across New York, the
    latter may be more convenient, but if you only want the affected ZIPs you
    can save 500K of storage space by deleting MC87LZ2N.dbf.  (Do not delete
    MC87LZ2D.DCT or .DBT).

4.  Add the MC87LZ2X and/or MC87LZ2N files to your MY_FILES catalog.

    a. Start EXTRACT as you usually do.

    b. Select any catalog and file--you won't be using them but you
       have to use something.

    c. At the main menu, type: 10 <enter> for advanced options.

    d. At the advanced options menu, type 5 <enter> to add files to
       your MY_FILES catalog.

       1) Press <enter> to confirm the display of the location of you
          MY_FILES catalog.
       2) Type:  A  to add files to your MY_FILES catalog.
       3) In response to the prompt "Enter full filename or mask",
          type:  C:\EXTRACT\WORK\MC87LZ2*.DBF.

    e. At the screen that displays the contents of your MY_FILES
       catalog (only one line if you haven't previously created any
       .dbf files):

       1) Cursor down to MC87LZ2N (if present)
       2) Press the right arrow three times, to highlight the field
          for a description of the file;
       3) Press <enter> to go into edit mode;
       4) Type:  Corrected Mfrs totals and 2-digit summaries for New York
       5) Press <enter> again
       5) Cursor to MC87LZ2X (if present)
       6) Cursor to the description field and press <enter> to go into edit
          mode
       7) Type:  Corrected Mfrs totals & 2-digit data for ZIPs 11804-12543
       8) Press <enter> again
       9) press <escape> twice to get back to the main menu

    f. At the main menu, type:  9 <enter>  to return to the file
       selection menu.

       1) Page down until you highlight MY_FILES and press <enter>
       2) Cursor down to highlight the last entry on the file list,
          which should say "MC87LZ2N" or "MC87LZ2X", and press <enter>

    g. Here you are.  Select items and display to the screen.

    h. Until CD-ROM 1E appears, you will always need to access the
       data for these ZIPs file by way of the MY_FILES catalog.