Help with xslt on windows

[Myles Parker <myles.parker@aviation-compliance-online.com>]

an someone help me out with xslt on windows?
I have copied the 3 dll's in to the c:\WINDOWS\SYSTEM32 directory
(sablot.dll, expat.dll, iconv.dll) I have a very simple php page..
<?php
  
   $xh = xslt_create();
   // Process the document, returning the result into the $sDXML variable
   $sDXML = xslt_process($xh, 'TOC.xml', '/www/Common/TOC/TOC.xsl');


?>

I continue to get this error when I try and run..
Fatal error: Call to undefined function: xslt_create() in 
C:\www\PHP\toc.php on line 3

Thanks
Myles