Problem:

My program does not find the MFEXTMAP.DAT-file

Resolution:

1. See handbook: Example of using the External File Mapper

2. Remember: the environment-variable MFEXTMAP points to a directory, rather than to the file itself

3. Try to use the dynamic runtime system

4. Try to read the environment variable MFEXTMAP, e.g.

       01 actual-value pic x(60).

       display "MFEXTMAP"     upon Environment-name

       accept  actual-value       from Environment-value

       display "Value of MFEXTMAP = " actual-value