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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

■ You loaded a binary format file that contains the SHELL
  function or the SIGNAL statement. This program will not run
  in Visual Basic because the SHELL function and SIGNAL
  statement are no longer supported.
 
■ If you need additional help, move the cursor to a keyword
  and press F1 to open the Help window.