The Extensible Stylesheet Language Transformation (XSLT) lets you transform the content of a source XML document into another document that is different in format or structure. For example, you can use XSLT to transform XML into HTML for use on a Web site or to transform it into a document that contains only the fields required by an application. This transformation process is specified by the W3C XSL Transformations (XSLT) Version 1.0 recommendation located at www.w3.org/TR/xslt.
The XslTransform class is obsolete in .NET Framework version 2.0. The XslCompiledTransform class is a new implementation of the XSLT engine. It includes performance improvements and new security features. The recommended practice is to create XSLT applications using the XslCompiledTransform class.