XmlTextWriter question

[Tom S.]

VS.Net ver 7.1.3088
..Net Framework 1.1 ver 1.1.4322 SP1

When using an XmlTextWriter to write an xml document, how
can I specify that the document needs to use a specific
xsd file for validation?

I've tried the following, but when I load the xml document
in IE, nothing displays:

string fileName = "C:/textXml.xml";
XmlTextWriter xwriter = null;
xwriter = new XmlTextWriter( fileName,
System.Text.Encoding.Default );
string PI = "type=\'text/xsl\' href=\'C:\\xsd.xsd\'";
xwriter.WriteProcessingInstruction( "xml-stylesheet", PI );
.....write the xml here.....
xwriter.Close();

When I create the Xml file without the
ProcessingInstruction, everything works fine ( it displays
correctly in IE ). I've also manually altered the xml
file after it was created to where the root element has
the following and it worked just fine:

<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-
instance" xsi:noNamespaceSchemaLocation="C:\xsd.xsd">
.....xml here....
</root>