WebDAV HTTPS transfer

Has anyone had any legitimate success with automating HTTPS transfer for
files using WebDAV?

(http://www.windowsnetworking.com/articles_tutorials/WebDAV- IIS.html) I can
manually transfer files quite easily...but when trying to batch file transfer
or automate it in some way so that it is pretty seamless to the end-user, it
has not worked out.

Any tips would be greatly appreciated. I am looking at a lot of third party
tools now, but really wanted to avoid any kind of client installation hassles
for the remote user needing to securely transfer files.

DK