Please find this wonderful article, which talks about "How to get item property values using WebDAV". This article has good example's in VB.Net, C#.Net, C++.Net and VBScript.
It talks about, how you can construct the XML body of a WebDAV PROPFIND Method manually. The request is for the displayname Field for a folder. After the request has been constructed, the code passes the XML string to an XMLHTTP Component Object Model (COM) object and sends the PROPFIND Method request to the server.