saxon to .net exslt problem

I've developed an 1.0 transformation using the Saxon
Java engine. It uses the date() function from the
exslt library. Everything works fine.

We're now trying to move this to a .NET 2.0
environment. 

This code snippet:

System.Xml.Xsl.XslCompiledTransform xsl = new
System.Xml.Xsl.XslCompiledTransform();
xsl.Load(xsltPath);
xsl.Transform(xmlPath, htmlPath); // THIS LINE THROWS
AN ERROR

throws this error:

System.Xml.Xsl.XslTransformException: Cannot find the
script or external object that implements prefix
'http://exslt.org/dates-and-times'. at. . .(I can
include the rest of this error message if necessary) 

We've confirmed that everything works in Saxon and
that we have all supporting files in the .NET
environment. Any ideas or suggestions would be
appreciated.

Thanks,

Don



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