Adding web reference problem...

In the Add Web Reference dialog box, I pointed the Address to a .vsdisco file and I get the following on the left pane,

Code:

---

<?xml version="1.0" encoding="utf-8" ?>
- <dynamicDiscovery xmlns="urn:schemas-dynamicdiscovery:disco.2000-03-17">
  <exclude path="_vti_cnf" />
  <exclude path="_vti_pvt" />
  <exclude path="_vti_log" />
  <exclude path="_vti_script" />
  <exclude path="_vti_txt" />
  <exclude path="Web References" />
  </dynamicDiscovery>

---

On the right pane, I get the following

Code:

---

Web Services
 
(none)
No Web References were found on this page.
Click for help on finding a Web Reference.
 
 
Errors
 
The document was not recognized as a known document type (WSDL, XML Schema, or Discovery document) for the following reason:
  - The content type 'application/octet-stream' is not valid for an XML document.

---

Can someone explain what I might have missed?

Thanks.