Note. Support for XML Core Services 4.0 has ended. Support was only available for Service Pack 3. Microsoft Learn
Microsoft officially ended support for MSXML 4.0 in April 2014 .
Because it no longer receives updates, it is frequently flagged by security scanners (like Nessus or Qualys) as a vulnerability.
It was commonly included in or updated via Windows XP, Vista, and Windows 7. ✅ Should you keep or remove it? Microsoft XML Core Services 4.0 - Microsoft Lifecycle
This software is considered and a significant security risk.
Older applications (like Toad for Oracle, SQL Server tools, or older games) install it as a necessary dependency.
Microsoft Msxml 4.20.9818.0 Apr 2026
Note. Support for XML Core Services 4.0 has ended. Support was only available for Service Pack 3. Microsoft Learn
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. SQL Server tools
It was commonly included in or updated via Windows XP, Vista, and Windows 7. ✅ Should you keep or remove it? Microsoft XML Core Services 4.0 - Microsoft Lifecycle Microsoft Msxml 4.20.9818.0
This software is considered and a significant security risk.
Older applications (like Toad for Oracle, SQL Server tools, or older games) install it as a necessary dependency.