Unfortunately Microsoft doesn't support XPath 2.0 or XSLT 2.0 yet.
Neither .NET nor MSXML support them.

One alternative would be using EXSLT functions instead of XPath 2.0 (see 
http://www.mvpxml.org)
Second option is to use Saxon.NET (http://saxon.sourceforge.net) for 
doing transformations.

-- 
Oleg

entropia wrote:
> Hi, 
> 
> I’m trying to display the contents of an xml file using an xslt file.  I’m 
> using ASP.NET.2.0 and the xsltCompiledTransform method in order to achieve 
> the transformation. Everything works fine when I don’t have xPath functions 
> in my xslt. But when I declare the namespace 
> ‘xmlns:fn=http://www.w3.org/2005/02/xpath-functions' and I use Xpath 
> functions in my XSLT it comes up with the following error message : ‘Cannot 
> find the script or external object that implements prefix 'fn'.
> 
> Could anyone please tell me what’s happening and why? Is there a way I can 
> surpass that? 
> 
> Your help will be much appreciated!!!
> 
> Thank u in advance,
> 
> Newbie in trouble….
> 
>