WebDrive - description from Softdepia.com:
WebDrive integrates FTP, WebDAV or FrontPage servers into the Windows desktop by making your web server appear as a network drive. This allows you to use your favorite applications to edit/manipulate files on your web server. WebDrive instantly Internet enables all of your existing applications. WebDrive includes proxy server support and many advanced FTP features like resume interrupted download, Auto ASCII/Binary transfer selection, and Unix file permission support. WebDrive also has SSL encryption capabilities on the NT/2000 platform for FrontPage and DAV connections.
WebDrive is a "Free to try" program. You can download and try it for an evaluation period.