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 The Microsoft® XML Parser (MSXML) 3.0 SP4 release offers a number of bug fixes and security fixes over the previous MSXML 3.0 SP releases. All MSXML 3.0 releases provide: 
 
- Server-safe HTTP access 
 - Complete implementation of XSL Transformations (XSLT) and XML Path Language (XPath) 
 - Changes to the Simple API for XML (SAX2) implementation, including new SAX2 helper classes with even higher conformance with World Wide Web Consortium (W3C) standards and the OASIS Test Suite.
  
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