SAPI, TAPI

[Amendra]

Can any body tell me how to use SAPI,TAPI. Can we get the speech into text with in the application using a fuction using SAPI. I need to build an application that would give me the words of a user speeking through into a mic or telephone.I need to process that text and take actions. egxamples are welcome
Also how do I use the OCX's given by the SAPI SDK.

Urgent