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Thank you for responding. I will check the registry . After posting my question , I did a search on my drive and came up with MSXML6.dll (and MSXML3.dll) &nbsp;in the windows\system32 directory - But there must be changes ( and that makes sense because they originally used MSXML2 version in the original page) since I receive the error message:<br />
<br />

<pre><code class="code-1 nolinks" id="code-20-42062466-1"><span>Microsoft VBScript runtime  error '800a01a8' </span>
<span></span>
<span>Object required: 'xdDoc.selectSingleNode(...)'</span>
<span></span>
<span> </span>
</code></pre>
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How do you create that xdDoc ?
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Yep! I do have 6 installed. Thank you for the link , registry key info, and for explaining about the sdk version. Its working just fine now!
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I am revising a classic asp page. I am using localhost, Windows 10 and IIS v10. I need to work with xml. <br />
The original coding used MSXML2.DOMDocument. I am not even sure if I have ANY version of MSXML on my computer.<br />
I know version 6 is the latest. And I am pretty sure that I don't have because I could not register a ocx to read what versions<br />
I had installed if any - &nbsp;the error I received, which according to Microsoft, &nbsp;- indicates of MSXML &nbsp;not being installed at all<br />
I looked in control panel -&gt; programs but did not see any reference to it.<br />
So I downloaded 2 files: msxml6_SDK.msi and msxml6_msi. <br />
Which do I need to install ? Or does it matter? Will it also provide documentation?
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I am revising a classic asp page. I am using localhost, Windows 10 and IIS v10. I need to work with xml. 
The original coding used MSXML2.DOMDocument. I am not even sure if I have ANY version of MSXML on my computer.
I know version 6 is the latest. And I am pretty sure that I don't have because I could not register a ocx to read what versions
I had installed if any -  the error I received, which according to Microsoft,  - indicates of MSXML  not being installed at all
I looked in control panel -> programs but did not see any reference to it.
So I downloaded 2 files: msxml6_SDK.msi and msxml6_msi. 
Which do I need to install ? Or does it matter? Will it also provide documentation?

XML and version of MS XML Dom Document versions

Active Server Pages (ASP) is Microsoft’s first server-side engine for dynamic web pages. ASP’s support of the Component Object Model (COM) enables it to access and use compiled libraries such as DLLs. It has been superseded by ASP.NET, but will be supported by Internet Information Services (IIS) through at least 2022.

Extensible Markup Language (XML) refers to the encoding of documents such that they can be read by both machines and humans. XML documents use tags to show the beginning and end of a set of data. XML is used extensively on websites to show volumes of data, and is the default for a number of office productivity suites. This topic includes discussions of XML-related technologies, such as XQuery (the XML Query language), XPath (the XML Path language), XSLT (eXtensible Stylesheet Language Transformations), XLink (the XML Linking language) and XPointer (the XML Pointer language).