r.a.d.spell is a multilingual spell checking program that can be used to implement spell checking functionality on ASP.NET websites. Users are allowed to modify dialog design according to their needs by using schemes. They can check repeated words, words with numbers, check words which starts with capital etc. This program has other features like, custom dictionary is available for each language and can be modified, ability to localize lables, buttons and tooltips, subject specific dictionaries can be inserted, word dictionaries support etc.