Call object/tangent space converter from command prompt or by using xNormalSDK

Hi,

In xNormal 3 SDK Quik Guide is example of ITangentBasisCalculator for convert an object-space normal into a tangent space, but it seems complicated. I try to find how call this conversion through xNormal by command prompt, but it still isn`t clear. In this thread http://eat3d.com/forum/questions-and-feedback/batch in 2010th it wasn`t available call Cavity map from normal map and jogshy write about it:

Nope, currently only the simple ao tool and the typical render process can be triggered using the command line. That's a thing we want to improve in xn4.

It would be very helpfull to get some references or ideas.

Thanks.