Today, we officially released MSXML4.0 Service Pack 3 (SP3) on the Microsoft Download Center as a stand-alone installer in multiple languages.
MSXML4.0 SP3 is a complete replacement of MSXML4.0, MSXML4.0 SP1 and MSXML4.0 SP2 and contains a number of bug fixes to enhance security and reliability.
Approximately nine years ago, MSXML4.0 was released to the web. MSXML4.0 was superseded by MSXML6.0 six+ years ago and is only intended to support legacy applications. After MSXML4.0 SP3, there are no future service packs planned. Also, please note that SP2 support will end in November 2009.
MSXML4.0 customers are recommended to upgrade to MSXML6. MSXML6 has new functionality, performance and security improvements. In addition, MSXML6 provides improved W3C compliance and increased compatibility with System.XML in .Net. Key changes introduced between MSXML4 and MSXML6 and migration are described in Upgrading to MSXML6.0.
MSXML6 is now available for all supported down-level platforms. It is either “in-the-box” in Windows (e.g in XP SP3+ and Vista+) or can be downloaded from the Microsoft Download Center .
– MSXML Team