Finally, Delphi developers have a reliable way to eliminate embarrassing spelling errors in their applications. Spelling errors make your application, that otherwise maybe a great program, look unprofessional. This could ultimately cost you sales. MisSpel for Delphi installs into the Delphi IDE MainMenu. MisSpel for Delphi allows you to spell check your source code (strings and or comments) or components laid out on a form or datamodule.