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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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 indicating one of the
  following conditions:
 
  • You attempted to print a file when the printer is not
    attached to the parallel port LPT1.
 
  • You transmitted data to a communications file and the
    signals being tested with the OPEN COM statement were not
    found in the specified period of time.
 
■ If you need additional help, move the cursor to a keyword
  and press F1 to open the Help window.