Re: Custom Extension XML

I notice IWObjektImport is the class name, what is  the method name you wish to call?
Also does IWObjektImport have a default constructor?
You class library should look something like this:
namespace IWImportAssembly
{
    public class IWObjektImport
    {
        public static string SomeMethod(string  p1, string p2, string p3, string p4)
        {
        }
    }
}

And Your xpath should be:
<xsl:variable name=”var:v1″  select=”ScriptNS3:SomeMethod($objektart_nr, $grundst_typ, $sonstige_typ, $isWAZ)” />