title: System.Web.Services namespace in .net core
body: <p>I am creating proxy class for SOAP services dynamically where I need <code>System.Web.Services</code> namespace and I am using .NET 5(Core).
  I am not able to find <code>System.Web.Services</code> namespace in .NET 5, so is it deprecated or moved to another namespace? How can I use classes of <code>System.Web.Services</code> namespace in .NET 5.</p>
  
  <p>Below is code where I need this namespace:</p>
  
  <pre><code> public class DynamicWSProxy: IDynamicWSProxy
  {
      [SecurityPermissionAttribute(SecurityAction.Demand, Unrestricted = true)]
      public object CallWebService(string webServiceAsmxUrl, string serviceName, string methodName, object[] args)
      {
          System.Net.WebClient client = new System.Net.WebClient();
  
          // Connect To the web service
          System.IO.Stream stream = client.OpenRead(webServiceAsmxUrl + "?wsdl");
  
          // Now read the WSDL file describing a service.
          ServiceDescription description = ServiceDescription.Read(stream);
  
          ///// LOAD THE DOM /////////
  
          // Initialize a service description importer.
  
          ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
          importer.ProtocolName = "Soap12"; // Use SOAP 1.2.
          importer.AddServiceDescription(description, null, null);
  
          // Generate a proxy client.
          importer.Style = ServiceDescriptionImportStyle.Client;
  
          // Generate properties to represent primitive values.
          importer.CodeGenerationOptions = System.Xml.Serialization.CodeGenerationOptions.GenerateProperties;
  
          // Initialize a Code-DOM tree into which we will import the service.
          CodeNamespace nmspace = new CodeNamespace();
          CodeCompileUnit unit1 = new CodeCompileUnit();
          unit1.Namespaces.Add(nmspace);
  
          // Import the service into the Code-DOM tree. This creates proxy code that uses the service.
          ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit1);
  
          if (warning == 0) // If zero then we are good to go
          {
  
              // Generate the proxy code
              CodeDomProvider provider1 = CodeDomProvider.CreateProvider("CSharp");
  
              // Compile the assembly proxy with the appropriate references
              string[] assemblyReferences = new string[5] { "System.dll", "System.Web.Services.dll", "System.Web.dll", "System.Xml.dll", "System.Data.dll" };
  
              CompilerParameters parms = new CompilerParameters(assemblyReferences);
  
              CompilerResults results = provider1.CompileAssemblyFromDom(parms, unit1);
  
              // Check For Errors
              if (results.Errors.Count &gt; 0)
              {
                  foreach (CompilerError oops in results.Errors)
                  {
                      System.Diagnostics.Debug.WriteLine("========Compiler error============");
                      System.Diagnostics.Debug.WriteLine(oops.ErrorText);
                  }
                  throw new System.Exception("Compile Error Occured calling webservice. Check Debug ouput window.");
              }
  
              // Finally, Invoke the web service method
  
              object wsvcClass = results.CompiledAssembly.CreateInstance(serviceName, true);
  
              MethodInfo mi = wsvcClass.GetType().GetMethod(methodName);
  
              return mi.Invoke(wsvcClass, args);
  
          }
  
          else
          {
              return null;
          }
      }
  
  }
  </code></pre>