thanks for the information.
i found programming and debugging in vb.net a little more difficult than the built in vba program. the object browser in vba has explainations of the method, property, etc, the vb.net doesn't. which i have to always have a pdf document open or have that api help for civil 3d open.
Stantec
Dell Precision 5530, Prism M320PU, C3D 14/17/19