By now you have successfully unzipped the GPSCGA (Version 2.7) system.
To run the sytem, type 'GPSCGA [/L] [/P] [/N]' at the DOS-prompt. 
You may prefer to read the manual first. To do this, issue 'READ GPSCGA.HLP' 
at the DOS-prompt. Use the USA.* and GRID.CGA sample files to learn more 
about GPSCGA. 

Registered versions:

The program PCXTOCGA.EXE converts B/W PCX-files for use with GPSCGA.
Issue 'PCXTOCGA /?' at the DOS-prompt to learn more about PCXTOCGA. 
If your PCX-file is called ABC.PCX you must enter 'PCXTOCGA /FABC'
to convert the file.

The 'quick-and dirty' program SELAIRPT.EXE allows you to customize the 
AIRPORTS.DAT file. Issue 'SELAIRPT keyword' at the DOS-prompt. keyword can 
be any ASCII-string. SELAIRPT reads AIRPORTS.DAT and writes every record
that contains keyword to the file AIRPORTS.NEW. E.g., the command
'SELAIRPT GERMANY' will create the file AIRPORTS.NEW that contains all
german airports. You then have to copy AIRPORTS.NEW to your destination
directory and rename it to AIRPORTS.DAT.

P.S. Note that the 's are not part of the input at the DOS-prompt.



