How to create SOAP request header with Security.

[bhu]

I have a simple helloworld web service ,
when i call this service from the client this is the message sent.
-----SoapRequest at 6/7/2006 10:18:11 PM
<?xml version="1.0" encoding="utf-8"?><soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><HelloWorld
xmlns="http://tempuri.org/" /></soap:Body></soap:Envelope>

i got this by creating the soaplogger class
but i want to create a soap message like this.
<soapenv:Header>
<wsse:Security xmlns:wsse:=http://schemas.xmlsoap.org/ws/2003/06/secext
soapenv:mustUnderstand="1">
<wsse:UsernameToken>
<wsse:Username>----Username here---</wsse:Username>
<wsse:Password>---PW here ------</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>

The C# client code is this.
ClientApp.TESTSERVER.Service1Wse proxy = new
ClientApp.TESTSERVER.Service1Wse();
UsernameToken tok = new
UsernameToken("kkkkk","bhu***",PasswordOption.Send PlainText);
proxy.RequestSoapContext.Security.Tokens.Add(tok);
textBox1.Text = proxy.HelloWorld();

Can any one please let me know, how to resolve this issue.

thank you

bhu