I turned on Reference (Microsoft Scripting Runtime), and successfully tested .CreateFolder into the Sharepoint structure ("https:\myCompany.sharepoint.com\sites...)
Two weeks later and it fails (error 52). I double-checked the Reference, but I can't figure out what's changed. In testing, I found using my local-path ("C:\Users\Dan\myCompany...) to the same directory in Sharepoint works. Obviously, hard-coding my path won't work for users! It appears using the "https" path has a permission problem, maybe?
I'm stuck. Any ideas would be greatly appreicated.