how to pass data directly in stream on the WS calls

[Bob]

I'm trying to centralize some of the common Web User Controls used in all of
our web applications (like header, footer) and put them in a web service to
be called by all the other web applications. There are a couple of ways I
can think of that can probably accomplish what I need. I'm most interested
in rendering the control on the WS server end, and then stream the result to
the consuming clients (the other web applications). I think this is
definitely doable but just can't quite figure how this should work. The
following is what I have so far on the WS server end in the asmx class:

[WebMethod]
public void GetPageHeader() {
/*oad the user control */
UserControl uc = new UserControl();
UserControl header =
(UserControl)uc .LoadControl(@" ~\UI\HeaderNoMe nu.ascx");

/*render the user control into the HttpResponse stream */
TextWriter tw = new
StreamWriter(th is.Context.Resp onse.OutputStre am);
HtmlTextWriter htw = new HtmlTextWriter( tw);
header.RenderCo ntrol(htw);
}

This compiles ok and runs without error when invoked from a browse (it
doesn't show anything in the browser as expected). However, I'm not sure
how to get the stream from the client end as no stream is exposed anywhere.
A fragment of the proxy class generated is shown below.

[System.Diagnost ics.DebuggerSte pThroughAttribu te()]
[System.Componen tModel.Designer CategoryAttribu te("code")]

[System.Web.Serv ices.WebService BindingAttribut e(Name="CommonU IElementsSoap",
Namespace="http ://tempuri.org/")]
public class CommonUIElement s :
System.Web.Serv ices.Protocols. SoapHttpClientP rotocol {

[System.Web.Serv ices.Protocols. SoapDocumentMet hodAttribute("h ttp://tempuri.o
rg/GetPageHeader", RequestNamespac e="http://tempuri.org/",
ResponseNamespa ce="http://tempuri.org/",
Use=System.Web. Services.Descri ption.SoapBindi ngUse.Literal,
ParameterStyle= System.Web.Serv ices.Protocols. SoapParameterSt yle.Wrapped)]
public void GetPageHeader() {
this.Invoke("Ge tPageHeader", new object[0]);
}
Do I need to implement something myself in order to get the stream, like
maybe using SoapExtension class? Any suggestions would be helpful.