David.
>
>AttachmentPathName needs to be a fullpath file name that the email program has access to. AttachmentName needs to be just the filename with no path.
>

Just in case anyone else looks at this, the important point is Path and the file name
To me attachmentPathName means the name of the path...Wrong!

.AttachmentName = "testattachment.txt"
.AttachmentPathName = "C:\testattachment.txt" && Path and FileName. Not just the path!

Thanks for making me look again.

Gordon.