Important Notice

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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Message:      0049
 
  Text:         Illegal use of Index-name or Index Data-item
 
  Explanation:  You have used an item with USAGE INDEX in a context
                where it is not allowed. Check your Language
                Reference for details of where you can use such items.
 
  Resolution:   Change the USAGE of the item, or use an item that does
                not have USAGE INDEX.
                                    -♦-