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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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:      RT027
 
  Text:         Device not available
 
  Severity:     Recoverable
 
  Explanation:  You are attempting to access a device which either is
                not attached to your machine or if attached is not
                on-line.
 
  Resolution:   Attach the device to your machine and ensure that it
                is on-line.  Repeat the file operation.
                                    -♦-