An extra forward slash mark (/) is appended to the query path of a WebDAV PROPFIND request when you visit a SharePoint Portal Server site by using Internet Explorer on a Windows-based computer
Consider the following scenario. You use Windows Internet Explorer to visit a Microsoft Office SharePoint Portal Server site. When you select Explorer View on the site, a WebDAV PROPFIND request is sent. However, an extra forward slash mark (/) is appended to the query path in the WebDAV PROPFIND request.
Because of this behavior, the request may be blocked by some firewalls, or it may be routed to the wrong server. In this scenario, you cannot access the correct resource.
This problem may occur in the following Microsoft Windows operating systems:
- Windows XP
- Windows Vista
- Windows Server 2008
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB945015.