Microsoft Msxml 4.20.9818.0 Page

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?

Older applications (like Toad for Oracle, SQL Server tools, or older games) install it as a necessary dependency.

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 Critical Status: Obsolete and Insecure Microsoft Msxml 4.20.9818.0

Note. Support for XML Core Services 4.0 has ended. Support was only available for Service Pack 3. Microsoft Learn

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 Older applications (like Toad for Oracle, SQL Server

Microsoft officially ended support for MSXML 4.0 in April 2014 .

You likely didn't install this manually. It usually arrives in one of two ways: Critical Status: Obsolete and Insecure Note

This software is considered and a significant security risk.