Thank you very much. Your advices have been very helpful.

I've tried handling the XSLT-file as a XmlDocument. The xsl-namespace used 
in XSLT-files demands a namespace manager to work properly. The final 
solution was to actually remove the entire namespace. It was to no use for me 
anyway. I found an implementation of an XmlWriter that removes namespace.

- Bjørn Terje

"Martin Honnen" wrote:

> 
> 
> Bjørn Terje Svennes wrote:
> 
> > Do you know if there is a way to programatically tell the XSL-file which 
> > namespace to use? The transformation works if I specify 
> > xmlns:pf="http://tempuri.org/ArchiveDataSet.xsd", but the namespace might 
> > change from time to time.
> 
> There is no direct mechanism unless you write XPath expressions and 
> match patterns in the form e.g.
> 
>    <xsl:template match="*[local-name() = 'local-element-name' and 
> namespace-uri() = $custom-namespace]">
> 
> and keep a global parameter e.g.
> 
>    <xsl:param name="$custom-namespace" 
> select="'http://tempuri.org/ArchiveDataSet.xsd'"/>
> 
> Such a global parameter can be set programmatically before running a 
> transformation, see 
> <http://msdn2.microsoft.com/en-us/library/system.xml.xsl.xsltargumentlist.addparam.aspx> 
> for .NET.
> 
> Besides that a second approach is to treat the stylesheet as an XML 
> document and use the DOM or even XSLT to manipulate the stylesheet 
> before using it.
> 
> 
> -- 
> 
> 	Martin Honnen --- MVP XML
> 	http://JavaScript.FAQTs.com/
>