According to documentation on IHTMLDocument7 interface it is available in Windows 7. I have Windows 7 but Windows scripting host tells me that object doesn’t support this property or method: ‘html.head’.

Dim http
Set http = CreateObject("Msxml2.XMLHTTP")

http.open "GET", "http://websiteurl", False
http.send

Dim html
Set html = CreateObject("htmlfile")
With html
  .designMode = "on"
  .write http.responseText
End With

WScript.Echo html.head.toString