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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

 
     Illegal extension interface called (<number>)
 
     Some extension interfaces have restricted use or are no longer
     available.
 
     Examine the extension's source code to confirm that it conforms
     to the current standards for editor extensions.
                                    -♦-