After you've downloaded the project, follow these steps:

• Download Excalibur
  If you don't already have it, you'll need to download Excalibur (freeware) from this location: http://www.eg.bucknell.edu/~excalibr/excalibur.html
  
  
• Run It and Play!
  Run the Spell Check Demonstration application, and fool around. Type in a bunch of words, some of them spelled correctly, some incorrectly. Spellcheck them. Fool around with it all you want! Could you find a use for a spell checker in your own application? It's easy with AppleEvents!
  
  
• Open It and Read
  Open the project up in REALbasic, and take a look at how it's set up. Would you like to use a different spell checker? Change the number of guesses requested from the spell checker? It's all commented and should (I hope) be fairly easy to follow.