What is msxml3.dll?

The genuine msxml3.dll file is a software component of Microsoft Windows Operating System by Microsoft.
The core DLL for the Microsoft XML Core Services, this process provides the user with APIs that are compliant with the W3C (World Wide Web Consortium) standards for programming XML apps. Founded in 1975 in New Mexico, Microsoft is now one of the largest software corporations in the world. Currently headquartered in Washington, the flagship Windows operation system is the most utilized OS in the world.

MsXML3 stands for Microsoft XML 3.0

Msxml3.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. You can fix your msxml3.dll problem by downloading the correct msxml3.dll file. The following information can help you determine if msxml3.dll is a Windows system file or if it belongs to an application that you can trust.

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Msxml3.dll file information

The process known as MSXML 3.0 (version SP10, SP11) belongs to software Microsoft® MSXML (version 3.0 SP10, 3.0 SP11) by Microsoft (

Description: Msxml3.dll is not essential for the Windows OS and causes relatively few problems. The file msxml3.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 1,438,720 bytes (31% of all occurrences), 1,172,992 bytes and 21 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. It can change the behavior of other programs or manipulate other programs. The service has no detailed description. The msxml3.dll file is not a Windows core file. Therefore the technical security rating is 57% dangerous.

Recommended: Identify msxml3.dll related errors

If msxml3.dll is located in the C:\Windows folder, the security rating is 50% dangerous. The file size is 1,122,304 bytes. You can uninstall this program in the Control Panel. It can change the behavior of other programs or manipulate other programs. The program has no visible window. The service has no detailed description. The msxml3.dll file is not a Windows system file.

Uninstalling this variant: The software vendor offers the option to use the software publisher's support site or completely remove (Control Panel ⇒ Uninstall a Program).

Important: Some malware disguises itself as msxml3.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the msxml3.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving msxml3 issues

A clean and tidy computer is the key requirement for avoiding problems with msxml3. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the msxml3.dll process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

msxml3.dll [all]