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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

A device has returned a hardware error:
 ■ If you are attempting to print a file, the printer
   is not attached to the parallel port LPT1.
 ■ If data are being transmitted to a communications
   file, the signals being tested with the OPEN COM
   statement were not found in the specified period
   of time.
 
ERR code: 25