If you have a question about QuickBASIC and you can't find the answer
  in the tutorial or in your manual, call Microsoft Product Support.
  When you phone, please have the following at hand:
      - The product serial number (found on your disk labels)
      - The name and model of your computer
      - The name and model of your printer, modem, mouse, cables and any
        special cards, if used
      - The Microsoft QuickBASIC documentation
 
  For technical support in your particular country, please refer to the
  addressed labels included in the package.