tinySpell

Windows only: Freeware program tinySpell is a cross-application spell checking utility that warns you of misspelled words and suggests replacements when you press the autosuggest hotkey.

this little Windows app is by far my favorite. When you type a word that isn't in tinySpell's dictionary, you'll hear a beep (it defaults to the Windows default beep, but you can change it to whatever you want). Hit the autosuggest hotkey (by default Ctrl-;) and tinySpell will pop up a list of suggestions. The first highlighted entry on the list is generally the spelling you're looking for, so hit Enter and it will automatically replace the word.

I've only been playing with tinySpell for a short time this morning, but it's already on its way to must-have status. Give it a try and let me know what you think about it in the comments.

Get it From here