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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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, which can indicate
one of the following conditions:
   ■ If you are attempting to print a file, the printer
     is not attached to the parallel port LPT1.
   ■ If you are transmitting data 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