My intention was to connect to my freshly set up  WebDAV directory served by Apache. The setup on the server side was quite tedious as well, but as expected, there are countless howtos around and one just has to put the pieces together as usual. The real problem however arose, when I starry-eyed tried to connect to that online directory using Vista’s “Map Network Drive …” dialog. After some steps into the wizard that always gave me the error popup saying “The folder you entered does not appear to be valid”.

Well that soon let me drop to the beloved command line. But using net use W: https://example.com/davroot was answered by “System error 67 has occurred” and “The network name cannot be found”. Using net use W: \\example.com@SSL\davroot gave no improvement.

I will spare you my other trials and all the different possible solutions that can be found on the net (I even installed a Microsoft patch which didn’t change anything) and write down straight what solved the problem:

1. Make sure the “WebClient” service is running! (Type “services.msc” into the search box in the start menu and hit enter.  Scroll down the WebClient and check.)
2. Use “\\yourserver@SSL\DavWWWRoot\yourshare” as the server address in the Folder field of the Map Network Drive dialog box. Do not forget the DavWWWRoot or the @SSL.