Because it is obsolete, many official Microsoft download links for MSXML 4.0 have been retired or now return 404 errors. If you must have it for a specific legacy application, you can try these sources:
Microsoft recommends migrating to MSXML 6.0 , which offers better security, reliability, and native 64-bit support. Where to Download MSXML 4.0 download msxml 4
As of , MSXML 4.0 reached its end-of-life (EOL) and is no longer supported by Microsoft. Using this version today introduces significant cybersecurity vulnerabilities and compatibility risks. Most Recent Version: MSXML 4.0 Service Pack 3 (SP3). Because it is obsolete, many official Microsoft download