The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
ISAM - Index not found
There is no index with the specified name for the ISAM
table referred to by a file number argument (for example,
in a DELETEINDEX or SETINDEX statement).
ERR code: 83