When I try to use Msxml2.ServerXMLHTTP the server raises an error

Question

When I do:

var xmlhttp = Server.CreateObject("Msxml2.ServerXMLHTTP");
xmlhttp.Open("GET", "http://google.com", false);
xmlhttp.Send();

it raises this error:

Microsoft JScript runtime error '800a01b6'

Object doesn't support this property or method

/library/Page.asp, line 10

With Microsoft.XMLHTTP everything works just fine.