Internal error (ERR: 51)

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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

■ An internal malfunction occurred in Visual Basic for MS-DOS.
 
■ Contact Microsoft Product Support Services to report the
  conditions under which the message appeared.
 
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