What is ObjectMatrixComment ?

I implement a bone animation with as3 and use kwxport to export x file from 3ds max?

it work with the tiny.x sample along with d3dsdk

but can not work with the ones export by kwxport.

as i know,animation stored in bone relative space
with tiny.x i do this in one animation step :
1 find the relative matrix for each bone,then compute the world matrix
2 use matrixOffset in SkinWeights to translate mesh vertex to bone relative space,
3 use bone world matrix to transform the vertex in bone relative space and average them by weights

but how can i do this with the x files export by kwport?

i know that a matrix i do not use: template ObjectMatrixComment { Matrix4x4 objectMatrix;}

help help

thanks