How can I determine which version of MSMXL4 that I have and how can I remove it?

See this related, archived discussion in Secunia forums: http://secunia.com/community/forum/thread/show/15049/update_msxml_4

Also see JoeP517's post in this related thread: http://windowssecrets.com/forums/showthread.php/164504-Microsoft-XML-Core-Services-(MSXML)-4-x

Yes PA Bear. I use PSI 3, and it instructs me to remove MSXML4 which is end of life and a security risk, and to install and use MSXML6. I think I already have MSXML6, but I am not sure. How can I verify which of the various MSXML's that I have, and remove the outdated ones that may not be safe?

I checked a few of the links offered above by Amit K Verma,but they seem nightmarishly technical.

I read on another forum that I only need to remove MSXML unless it is a special version that is not offered by Microsoft Update. I find this MSXML business very confusing, and I do not even know what it does.

How does this pertain to Windows Update functionality?

Is Secunia PSI installed?

Hello,

Thank you for posting your query on Microsoft Community.

Microsoft provides several different XML parsers. The MSXML parser is included in the Msxml.dll file, the Msxml2.dll file, the Msxml3.dll file, the Msxml4.dll file, the Msxml5.dll file, the Msxml6.dll file, and one or more resource files. Notice that Windows HTTP Services (Winhttp*.dll) is also included with some versions of MSXML.

The Microsoft XML parser is a Component Object Model (COM) implementation of the W3C DOM model. Two versions are associated with each parser: the release version of the MSXML parser and the actual file version of the DLL that contains the parser. The release version of the MSXML parser (for example, versions 2.5, 2.6, 3.0, 4.0, 5.0, and 6.0) identifies the milestone of development.

However, before we proceed I would require some more information to assist you better.

1. Are you experiencing any issue on the computer?
2. Which application are you trying to check?

If it is for Internet Explorer, then try the steps from this Microsoft article: How To Determine the Version of MSXML Used by Internet Explorer

You may also refer to the following Microsoft articles and check if it helps:

Determine the Version of MSXML Parser Installed on a Computer

How to install Microsoft XML Parser and Microsoft XML Core Services (MSXML)

Refer to the section: How to install Microsoft XML Core Services 6.0

List of Microsoft XML parser (MSXML) versions

Hope the information helps. Let us know if you need further assistance with Windows related issues, we’ll be glad to assist you.

Thank you