ms:string-compare does NOT work in MSXML 4.0

Hi.  

I downloaded and installed the latest MSXML 4.0 SDK and everything seems to work fine except for one thing.  What I can NOT do is run any of the examples that use the MXSML Extensions:  ms:string-compare, ms:format-date, etc.

Everytime I run of these "extensions" I get the following error:  for example when running the ms:string-compare ...

      Namespace 'urn:schemas-microsoft-com:xslt' does not contain function 'string-compare'. -->ms:string-compare(., '2', 'en-US', 'i')<--

The tests I have been attempting have been copied VERBATIMLY from the MSXML 4.0 SDK Help Documentation.  If you have it installed on your machine you can see the example given below under the help page for "ms:string-compare".

So, the question is, why are these extensions not working?  Do I need to install something else?  PLEASE HELP!!


************************************************************************
Here is an example (taken verbatimly from the MSXML 4.0 SDK Help Documentation which does not work on my machine AFTER having installed MSXML 4.0):
************************************************************************


[xml]

<?xml version="1.0"?>
<?xml-stylesheet href="format.xsl" type="text/xsl"?>

<string-sample>
   
	<string>1</string>
	<string>2</string>
	<string>3</string>
	
</string-sample>


―---------------------------------------------------------------------------------------




<?xml version='1.0'?>

<xsl:stylesheet
	version="1.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:ms="urn:schemas-microsoft-com:xslt">
    
    <xsl:output method="html" omit-xml-declaration="yes"/>
   
	<xsl:template match="/string-sample">
      
		<xsl:for-each select="string">
         
			<xsl:value-of select="ms:string-compare(., '2', 'en-US', 'i')"/>,
     
		</xsl:for-each>
		
	</xsl:template>
	
</xsl:stylesheet>









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