I have the following code...
<%
    Response.Expires = -1000
    Dim x1
    set x1 = Server.CreateObject("MSXML.DOMDocument")
    x1.loadXML("<P><T a='1' n='ttt'/><T a='2' n='yyy'/></P>")
    dim xmlTempNode
    set xmlTempNode = x1.selectSingleNode("//T[@a='4']")
    if (xmlTempNode is Nothing) then
        Response.Write "Does not exists..."
    else
        Response.Write "Exists"
        Response.Write " value is:"
        Response.Write xmlTempNode.attributes.getNamedItem("n").text
   end if
    set xmlTempNode = nothing
    set x1 = nothing
%>

This code seems to be ok, when I execute it for the first time.
If I change,
    set xmlTempNode = x1.selectSingleNode("//T[@a='4']")
to
    set xmlTempNode = x1.selectSingleNode("//T[@a='2']")
There is no effect in the code.
But then if I modify the XML (say by modifying an attribute value)
it shows the result correctly.

Thanks,
Babloo

Hi Babloo,

this has always worked for me:
BTW in your XPath, using // is a bad habit to get into because it can be a very expensive operation (not in XML as small as your example here, though). Its much better to use the full path if you know it, e.g. /P/T[@a='4']

rgds
Phil