Difference between Msxml2.DOMDocument and Msxml2.XMLHTTP

Question

What is the difference between:

Msxml2.DOMDocument
Msxml2.XMLHTTP

? And of course, the other question is which one will work best for my purpose as described below?

The context is this - I have code that makes many calls to retrieve web pages. I am looking for the most efficient object for this task. For example, something like this:

Dim oXmlHttp : Set oXmlHttp = CreateObject("MSXML2.XMLHTTP")

oXmlHttp.Open "GET", sUri, False
oXmlHttp.Send
If Err Then
    getWebPage = "ERROR - could not get the source text of the webpage."
    Exit Function
End If
sResponse = oXmlHttp.responseBody

This seems to work the same way if I create an object using:

Dim oXmlHttp : Set oXmlHttp = CreateObject("MSXML2.XMLHTTP")

Can anyone explain or point me to a reference that clearly outlines the differences (and intended usages) for each of those?

JimmyPena · Accepted Answer · 2012-05-30 19:37:23Z

6

If you want to learn more about MSXML, these links may help:

In short, XMLHTTP is used to retrieve information, while DOMDocument is used to structure and parse it.

This page explains it better: http://msdn.microsoft.com/en-us/library/windows/desktop/ms760218(v=vs.85).aspx

DOMDocument "Represents the top node of the XML DOM tree." while XMLHTTP "Provides client-side protocol support for communication with HTTP servers."

answered May 30, 2012 at 19:37

JimmyPena

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1 Comment

GWR Over a year ago

makes perfect sense, thanks for the point in the right direction.

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