SpellSource is a spell-checker for resource control (RC) files. SpellSource spell checks strings in ".rc&quot\; files. It is useful for making sure that your application's user interface is free from embarrassing spelling errors. SpellSource works with any .rc file, including those created by Visual C++. You can even install SpellSource in the Visual C++ Tools menu. SpellSource understands the RC file format, skipping over key words and checking just the displayable strings: captions, check boxes, controls, static text, menus, buttons, and string tables.