Forum Thread: MSXML 4.0 SP3 Parser setup

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lelewissr MSXML 4.0 SP3 Parser setup
Member 19th May, 2014 19:08
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PSI indicated I need to update to "MSXML 4.0 SP3 Paser setup" ? I am running Win. 8.1 (64). All the research I can find is this is used on Win. 7, Win. XP or lower O/S's? Do I need to install MSXML 4.0 SP3 Parser setup on my 8.1 (64) O/S?

Thanks in advance for any help.


Maurice Joyce RE: MSXML 4.0 SP3 Parser setup
Handling Contributor 19th May, 2014 23:46
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Last edited on 19th May, 2014 23:48
MSXML 4 is not part of Windows 7 or Windows 8/8.1/8.1.1.

MSXML 4 is being used by an old programme (which may well have installed it) that requires it to work.

I wrote this script some time ago to help others with the problem. You will note I have not personally tested it on Windows 8 but if MSXML 4 SP1/2 are already working OK on your PC there should not be an issue when upgrading.


The release note for MSXML 4 is here:

Please note this SP was released before Windows 7 & 8 was produced therefore there is no mention of compatibility or support once installed - it works flawlessly with Windows 7 on both 32 & 64 Bit systems. I have NOT tested it on my Windows 8 or 8.1 PCs because I have no old legacy programmes that require it to be installed.

If PSI gives a version number starting 4.2 or 4.1 that indicates that the very old MSXML 4 SP2 or even older SP1 is installed which must be MANUALLY upgraded to MSXML 4 SP3 as follows:

Click this link: (please note that the system requirements for this download do state that Windows 7 is supported unlike the release notes)

Once open activate the clearly marked download link called MSXML.MSI - 2.3 MB.

Once installed run & rerun Windows Update - there are some additional patches for MSXML 4 SP3.

On completion PSI will show MSXML 4 as secure with version 4.30.2117.0. like this:

Hope this helps.

Revised 22:33 19/05/2014


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lelewissr RE: MSXML 4.0 SP3 Parser setup
Member 20th May, 2014 01:13
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Thanks Maurice for your quick response. Thanks again. Didn't think I was running any old programs? Will check.

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