Thanks for you replies, by 'Webfolder' I mean the link that appears under 'My Computer' on NT, dbl-click then 'Add Web Folder' then you enter the url and then user/password.
Yes we got that. (btw Web Folders are not specific to NT, they are an option availble w/ IE umm 5.5 I believe).
Web Folders is Microsoft's support for WebDAV in Windows.
amphiplex pointed you in the right direction. More
directly you might read about HTTP::DAV
or HTTP::WebDAV (however that requires neon,
and you are on win32 so getting neon could prove difficult).