gistfile1.txt

diff --git a/mcs/class/System.Web.Services/System.Web.Services.Description/BasicProfileChecker.cs b/mcs/class/System.Web.Services/System.Web.Services.Description/BasicProfileChecker.cs
index c9d73c2..e862414 100644
--- a/mcs/class/System.Web.Services/System.Web.Services.Description/BasicProfileChecker.cs
+++ b/mcs/class/System.Web.Services/System.Web.Services.Description/BasicProfileChecker.cs
@@ -142,7 +142,7 @@ namespace System.Web.Services.Description
 
                public override void Check (ConformanceCheckContext ctx, BindingCollection value) {
                        foreach (Binding b in value)
-                               foreach (ServiceDescriptionFormatExtension ext in b.Extensions)
+                               foreach (object ext in b.Extensions)
                                        if (ext.GetType () == typeof (SoapBinding))
                                                return;
 
diff --git a/mcs/class/System.Web.Services/System.Web.Services.Description/ServiceDescription.cs b/mcs/class/System.Web.Services/System.Web.Services.Description/ServiceDescription.cs
index fb0aab5..eee8a30 100644
--- a/mcs/class/System.Web.Services/System.Web.Services.Description/ServiceDescription.cs
+++ b/mcs/class/System.Web.Services/System.Web.Services.Description/ServiceDescription.cs
@@ -339,8 +339,13 @@ namespace System.Web.Services.Description
                
                void AddExtensionNamespaces (XmlSerializerNamespaces ns, ServiceDescriptionFormatExtensionCollection extensions)
                {
-                       foreach (ServiceDescriptionFormatExtension ext in extensions)
+                       foreach (object o in extensions)
                        {
+                               ServiceDescriptionFormatExtension ext = o as ServiceDescriptionFormatExtension;
+                               if (ext == null)
+                                       // o can be XmlElement, skipping that
+                                       continue;
+
                                ExtensionInfo einf = ExtensionManager.GetFormatExtensionInfo (ext.GetType ());
                                foreach (XmlQualifiedName qname in einf.NamespaceDeclarations)
                                        ns.Add (qname.Name, qname.Namespace);
@@ -352,8 +357,12 @@ namespace System.Web.Services.Description
                        ServiceDescriptionFormatExtensionCollection extensions = ExtensionManager.GetExtensionPoint (ob);
                        if (extensions != null)
                        {
-                               foreach (ServiceDescriptionFormatExtension ext in extensions)
-                                       WriteExtension (writer, ext);
+                               foreach (object o in extensions) {
+                                       if (o is ServiceDescriptionFormatExtension)
+                                               WriteExtension (writer, (ServiceDescriptionFormatExtension)o);
+                                       else if (o is XmlElement)
+                                               ((XmlElement)o).WriteTo (writer);
+                               }
                        }
                }
                
diff --git a/mcs/class/System.Web.Services/Test/System.Web.Services.Description/ServiceDescriptionTest.cs b/mcs/class/System.Web.Services/Test/System.Web.Services.Description/ServiceDescriptionTest.cs
index 7ebfc51..99fe6c6 100644
--- a/mcs/class/System.Web.Services/Test/System.Web.Services.Description/ServiceDescriptionTest.cs
+++ b/mcs/class/System.Web.Services/Test/System.Web.Services.Description/ServiceDescriptionTest.cs
@@ -141,6 +141,14 @@ namespace MonoTests.System.Web.Services.Description
                    Assert.AreEqual (typeof (SoapAddressBinding), sd.Services [0].Ports [0].Extensions [0].GetType ()); 
                    CheckXmlElement (sd.Services [0].Ports [0].Extensions [1], "portElem");
 
+                   string out_file = Path.GetTempFileName ();
+                   try {
+                           using (FileStream out_fs = new FileStream(out_file, FileMode.Create))
+                                   sd.Write (out_fs);
+                   } finally {
+                           if (!String.IsNullOrEmpty (out_file))
+                                   File.Delete (out_file);
+                   }
                }
 
                void CheckExtensions (DocumentableItem di, string elemName, string val)