4.20.9818.0: Microsoft Msxml

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

Microsoft officially ended support for MSXML 4.0 in April 2014 . 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 Msxml 4.20.9818.0