DNS has always been promising and always falls short of its promise in practice. I have a powerful machine, lots of memory, and it still freezes up on me. It often fails to recognize commands in MS Word 2003, although it does better in its own Dragon Pad; it looks like it wasn't really adapted to Word 2003. Tech support is terrible. DNS 8 is supposed to be much more accurate than 7, but I haven't found it so. Save your money.