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4.20.9818.0 is an older sub-version of SP2. Even the "newer" SP3 (version 4.30.2100.0) is also now unsupported. 🛠️ Why is it on your computer?
Note. Support for XML Core Services 4.0 has ended. Support was only available for Service Pack 3. Microsoft Learn Microsoft Msxml 4.20.9818.0
Because it no longer receives updates, it is frequently flagged by security scanners (like Nessus or Qualys) as a vulnerability. Microsoft Learn Because it no longer receives updates,
Older applications (like Toad for Oracle, SQL Server tools, or older games) install it as a necessary dependency. SQL Server tools
Microsoft officially ended support for MSXML 4.0 in April 2014 .
Microsoft MSXML 4.20.9818.0 is a specific version of . It is an older system component used by legacy Windows applications to parse and process XML data. Critical Status: Obsolete and Insecure
This software is considered and a significant security risk.