Thanks, but I had seen this blog and it is about using FileExplorer from within Sharepoint.
My need is for a classic asp.net web site containing a FileExplorer and which is connected to a Sharepoint document library.
Such configuration requires that somewhere I can indicate the Sharepoint library url and credentials. And it requires that the content provider connects to Sharepoint via web services. This is, I guess, a requirement since my Sharepoint doesn't sit on the same server as the web site.