msxml3.dll error '80072f8f' (System error: -2147012721)

A "msxml3.dll error '80072f8f' (System error: -2147012721)" error was returned when the codes below was run.

It has been working for a long while, but the above problem just surfaced.

AN EXTRACT OF CODES
<%
      strURL = strURL & "&fname=" & "TESTER"
      strURL = strURL & "&lname=" & "01"
      strURL = strURL & "&zip=" & "123456"

      Set xmlhttp = CreateObject("MSXML2.ServerXMLHTTP.3.0")

      xmlhttp.open "POST", "https://xxxx.xxxx.com:123", False               'open connection

      call xmlhttp.setRequestHeader ("Content-Type", "application/x-www-form-urlencoded")
       xmlhttp.send strURL

      If Err.Number = 0 Then
          retStr = xmlhttp.responseText
      Else
          retStr = "Url not found"
      End If
      return_message = retStr
                response.write(return_message)
      Set xmlhttp = Nothing
%>
thomaslim17Asked:
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rdcproCommented:
This KB should help:

http://support.microsoft.com/default.aspx?scid=kb;en-us;301429&Product=msxml 

If not, then I'll bet a proxy has been recently installed, or configured.  There is a proxy configuration utility that should help.  It's called proxycfg.exe, and should be somewhere on your system already.  If not, you can get it from MSDN.  

But I think your error indicates that IIS could not provide a client certificate for the ServerXMLHTTP object's request.  You can configure MSXML to use a different certificate, as well.

Regards,
Mike Sharp
0

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