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copied!<p>To avoid the confusion of having two different WSDLs available on two different URLs (i.e., the *.asmx?wsdl URL and a custom URL) in your web service application, you could write an HttpModule that intercepts the request to the *.asmx?wsdl URL and returns your custom WSDL instead.</p> <p><strong>EDIT:</strong> Here's an example, adapted and simplified from some code I previously wrote that makes a custom WSDL available at the standard *.asmx?wsdl URL.</p> <pre><code>using System; using System.IO; using System.Web; using System.Web.Services.Configuration; namespace DemoWebService { public class CustomWsdlModule : IHttpModule { public void Init(HttpApplication application) { // hook up to BeginRequest event on application object application.BeginRequest += new EventHandler(this.onApplicationBeginRequest); } public void Dispose() { } private void onApplicationBeginRequest(object source, EventArgs ea) { HttpApplication application = (HttpApplication)source; HttpRequest request = application.Request; HttpResponse response = application.Response; // check if request is for WSDL file if ( request.Url.PathAndQuery.EndsWith(".asmx?wsdl", StringComparison.InvariantCultureIgnoreCase) ) { // if Documentation protocol is not allowed, throw exception if ( (WebServicesSection.Current.EnabledProtocols & WebServiceProtocols.Documentation) == 0 ) { throw new System.InvalidOperationException("Request format is unrecognized."); } // get path to physical .asmx file String asmxPath = request.MapPath(request.Url.AbsolutePath); // build path to .wsdl file; should be same as .asmx file, but with .wsdl extension String wsdlPath = Path.ChangeExtension(asmxPath, ".wsdl"); // check if WSDL file exists if ( File.Exists(wsdlPath) ) { // read WSDL file using ( StreamReader reader = new StreamReader(wsdlPath) ) { string wsdlFileContents = reader.ReadToEnd(); // write WSDL to response and end response without normal processing response.ContentType = "text/xml"; response.Write(wsdlFileContents); response.End(); } } } } } } </code></pre> <p>This simplified code assumes that your custom WSDL is in the same folder as your .asmx file with a .wsdl extension. The HttpModule needs to be hooked into your web service application via the web.config file:</p> <pre><code><?xml version="1.0"?> <configuration>  <system.web>  <httpModules> <add type="DemoWebService.CustomWsdlModule" name="CustomWsdlModule"/>  </httpModules>  </system.web>  </configuration> </code></pre>

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