emailSmtp non-visual: fine in classic, issue in pb.net?

All,

I’ve been attempting to get use the emailSMTP non-visual from TopWizProgramming.com in a test project.  In PB 12.5 Classic works just fine.  But the PB.Net version always gives me a failed send with this last error:

-1: The requested address is not valid in its context.

                   
I’m not sure if I’m just missing a reference, or if it is something else.   Just thought I’d see if anyone else has run into a similar situation.

Thanks!

Jim