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The information in this topic is intended to familiarize you with MSXML installation, redistribution, versioning and common issues that you might encounter when using MSXML.

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This topic focuses on the more recent MSXML versions. The following MSXML versions are covered:

MSXML version 6.0, see Installing and Redistributing MSXML 6.0.
MSXML version 4.0, see Installing and Redistributing MSXML 4.0.
MSXML version 3.0, see Installing and Redistributing MSXML 3.0.

Note

MSXML 5.0 for Microsoft Office Applications is only available with Microsoft Office 2003 and is not covered in this topic.

MSXML Installation Overview

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MSXML side-by-side installation allows multiple versions to be loaded in memory and used simultaneously by separate applications that depend on different versions of MSXML. For example, MSXML 6.0 will install side by side with MSXML 3.0 and will not impact existing applications that use MSXML 3.0. When a service pack is installed for a version of MSXML, the service pack will completely replace the previous installation of that version. For example, a new service pack for MSXML 3.0 completely replaces the previous installation of MSXML 3.0, but does not affect an installation of MSXML 6.0. The only MSXML version where it is an option to have a later SP version installed without replacing the previous one is MSXML 4.0. This can be done by installing MSXML 4.0 in Windows OS Side-by-Side (WinSxS) mode.

It is not recommended to use Windows OS Side-by-Side (WinSxS) installations. Instead, you should validate your application with the latest service pack of the version of MSXML that you use.

Note

It is recommended that you upgrade from earlier versions of MSXML to MSXML 6.0. MSXML 6.0 provides security and performance improvements over earlier MSXML versions.

To download the latest version of MSXML, see the XML Downloads page of the MSDN Online Library.

MSXML SDK Installation

In order to build an application written in C++, a MSXML header file has to be included, and the project has to link to a MSXML library. The MSXML header file and library are installed when installing the MSXML SDK. To download MSXML SDK, go to the XML Downloads page of MSDN Online Library and choose the appropriate MSXML version.

If you install MSXML 6.0 SDK, by default your directory will be C:Program FilesMSXML 6.0, with subdirectories named inc and lib.

Redistributing MSXML Overview

When you write applications that use MSXML, you might also need to redistribute MSXML along with your application.

For MSXML 6.0, you should incorporate msxml6.msi into your application setup.
For versions prior to MSXML 6.0, use the Windows Installer merge module (Msxml.msm).
For MSXML 4.0, use the .CAB file (Msxml4.cab) method of distribution for Web download installations.

For more information about how to redistribute MSXML with your application setup, see the XML Downloads page of MSDN Online Library.

Using Version-Dependent ProgIDs

MSXML 3.0 was the last version of MSXML to support version-independent CLSIDs and ProgIDs. If you install later versions of MSXML, applications that use version-independent CLSIDs and ProgIDs will continue to run using the most recent version of MSXML that supports version independence, typically MSXML 3.0. To address a particular version of the parser, code should include version-dependent CLSIDs and ProgIDs.

The following statement invokes the version-independent DOM Document implemented in MSXML 3.0:

The following statement invokes a particular version of the parser, in this case MSXML 3.0:

To use MSXML 6.0 instead of MSXML 3.0, use the following new MSXML 6.0 CLSID:

Important

Ensure the stability of your applications by updating older version-independent CLSIDs and ProgIDs to version-dependent CLSIDs and ProgIDs.

The Document Object Model (DOM), a standard library of application programming interfaces (APIs) for accessing XML documents.
Helper APIs to assist with programming for the XML namespace or the HyperText Transfer Protocol (HTTP) when it is used to send data directly between Web servers.
XML Schema Definition (XSD). Earlier MSXML versions such as MSXML 3.0, 4.0, and 5.0 as support the XML Data Reduced schema definition language (XDR), which was introduced by Microsoft to support XML schema working needs before XSD became a W3C standard. Support for XDR is removed from MSXML 6.0.
The Simple API for XML (SAX), a programmatic alternative to DOM-based processing.
The Schema Object Model (SOM), an additional set of APIs for accessing XML Schema documents programmatically that was available in MSXML 4.0 and later.
XML Digital Signatures support, which provides the ability to sign and verify XML document data through digital encryption. This support is only available in MSXML 5.0 for Microsoft Office Applications.

Microsoft Core XML Services on 32-bit and 64-bit PCs

This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from programming software without restrictions. MSXML 6.20.2003.0 is available to all software users as a free download for Windows 10 PCs but also without a hitch on Windows 7 and Windows 8.

Filed under:

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Microsoft Core XML Services Download
Freeware Programming Software
Major release: Microsoft Core XML Services 6.20

MSXML Installation Overview

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MSXML SDK Installation

Redistributing MSXML Overview

Using Version-Dependent ProgIDs

See Also

Tools which allow programmers to build native Windows XML apps

Features and highlights

Xml Dom Document Add On

Xml Dom Document Download

Microsoft Core XML Services on 32-bit and 64-bit PCs

Music Download For Mac

Microsoft Xml Dom Download For Mac