How to generate mesh on spline at runtime?

[_RicO]

I've been watching some of your tutorials on generating and extruding a mesh on top of an existing spline in the editor using Curvy Generator (maybe I missed one), but I generate my spline at runtime and would need to add a mesh and slowly extrude it from start to end of the spline at runtime by script.  I did find "CreateMesh()" in the API page, but not really sure how I would use it to add my mesh and extrude it.

Any help would be greatly appreciated