I have determined why this was failing (GCE - Gross Conceptual Error) on my part.

By including the "SaveAs2" in a module that is compiled during use, it will cause an error.

I have moved the "SaveAs" and "SaveAs2" portions to other routines that are called upon, based on the Application.Version.

I also overlooked the ":" in the file name, as it is not allowed in the naming of a file.