FreeSpell is a spell checker for any and all Windows applications. You can use it in Microsoft Outlook, Firefox, Visual C++, and even in Windows Explorer when renaming files. In fact, anything that supports the clipboard supports FreeSpell, and all it takes is a hotkey to invoke it. FreeSpell is based upon the Aspell engine, which means it offers the best spell checker around for people with weak spelling skills (as well for people who just need a quick proofread). FreeSpell comes with a large default dictionary and has custom dictionary support.