Hi, The authentication for WebDAV will use the configured ASP.NET membership provider, just like the rest of EPiServer. I have just tried to access my EPiServer site with WebDAV and using the SQL membership/role providers, works like expected. Does the SQL membership user have access to the files exposed with WebDAV when accessing the files directly? I e if you have http://site/webfolder/global/startPage/front.jpg - can you access the file as http://site/global/startPage/front.jpg, i e outside the context of WebDAV? Have you upgraded your WebDAV client as per the instructions in the technote http://www.episerver.com/en/EPiServer_Knowledge_Center/Documentation/TechNotes/CMS-Tech-Notes/WebDAV-in-EPiServer/ ? If all else fails, could you run Ethereal and create a dump of the http traffic? It would help me diagnose the problem a bit further. Regards, Magnus Stråle