Nice thing about girder is, you basically can control anything windows can do. Therefore, the speech plugin just attachs a speech input to any macro you create in Girder.
Girder 4.0 is around $40 retail, but if you're crafty (smile) you can still find version 3.29b which is freeware.
The speech plugin can still be found on their site.
This speech plugin only works for top level grammar, so dictation is way out. But for voice commands, so far, I haven't found a limit.
As soon as I finalize and test my command structure, I'll post the GML and XML.