Following can be read at SpellCheckers home page:Due to the lack of revenue from banner advertising, we have been forced to discontinue the free version of our product. We do offer an evaluation version of our software that works for 10 days. This is intended for customers who want to evaluate our software with the intention of licensing our SpellChecker engine to run on their own server.
The cost for above feature to have it enabled is $150. So I guess that we have do without it for now.