diff --git a/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.cpp b/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.cpp
index ac8deba8d4..cf88a23de9 100644
--- a/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.cpp
+++ b/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.cpp
@@ -82,4 +82,21 @@ namespace CefSharp
 
         return wrapper;
     };
+
+    bool CefAppUnmanagedWrapper::OnProcessMessageReceived(CefRefPtr<CefBrowser> browser, CefProcessId source_process, CefRefPtr<CefProcessMessage> message)
+    {
+        bool handled = false;
+
+        for (ProcessMessageDelegateSet::iterator it = _processMessageDelegates.begin(); it != _processMessageDelegates.end() && !handled; it++) 
+        {
+            handled = (*it)->OnProcessMessageReceived(browser, source_process, message);
+        }
+
+        return handled;
+    };
+
+    void CefAppUnmanagedWrapper::AddProcessMessageDelegate(CefRefPtr<ProcessMessageDelegate> processMessageDelegate)
+    {
+        _processMessageDelegates.insert(processMessageDelegate);
+    };
 }
\ No newline at end of file
diff --git a/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.h b/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.h
index 2d4c179e42..e83c91a840 100644
--- a/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.h
+++ b/CefSharp.BrowserSubprocess.Core/CefAppUnmanagedWrapper.h
@@ -10,15 +10,20 @@
 #include "include/cef_base.h"
 
 #include "CefBrowserWrapper.h"
+#include "../CefSharp.Core/Internals/Messaging/ProcessMessageDelegate.h"
 
 using namespace System::Collections::Generic;
 
 namespace CefSharp
 {
+    using namespace Internals::Messaging;
+
     // This class is the native subprocess level CEF object wrapper.
     private class CefAppUnmanagedWrapper : CefApp, CefRenderProcessHandler
     {
     private:
+        ProcessMessageDelegateSet _processMessageDelegates;
+
         gcroot<Action<CefBrowserWrapper^>^> _onBrowserCreated;
         gcroot<Action<CefBrowserWrapper^>^> _onBrowserDestroyed;
         gcroot<Dictionary<int, CefBrowserWrapper^>^> _browserWrappers;
@@ -44,6 +49,9 @@ namespace CefSharp
         virtual DECL void OnBrowserDestroyed(CefRefPtr<CefBrowser> browser) OVERRIDE;
         virtual DECL void OnContextCreated(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame, CefRefPtr<CefV8Context> context) OVERRIDE;
         virtual DECL void OnContextReleased(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame, CefRefPtr<CefV8Context> context) OVERRIDE;
+        virtual DECL bool OnProcessMessageReceived(CefRefPtr< CefBrowser > browser, CefProcessId source_process, CefRefPtr< CefProcessMessage > message) OVERRIDE;
+
+        void AddProcessMessageDelegate(CefRefPtr<ProcessMessageDelegate> processMessageDelegate);
 
         IMPLEMENT_REFCOUNTING(CefAppUnmanagedWrapper);
     };
diff --git a/CefSharp.Core/CefSharp.Core.vcxproj b/CefSharp.Core/CefSharp.Core.vcxproj
index 0471d257d9..03df538bb2 100644
--- a/CefSharp.Core/CefSharp.Core.vcxproj
+++ b/CefSharp.Core/CefSharp.Core.vcxproj
@@ -267,6 +267,7 @@
     <ClInclude Include="Internals\CefRequestWrapper.h" />
     <ClInclude Include="Internals\CefJSDialogCallbackWrapper.h" />
     <ClInclude Include="Internals\MCefRefPtr.h" />
+    <ClInclude Include="Internals\Messaging\Messages.h" />
     <ClInclude Include="Internals\PluginVisitor.h" />
     <ClInclude Include="Internals\RenderClientAdapter.h" />
     <ClInclude Include="Internals\ReportUnhandledExceptions.h" />
@@ -279,6 +280,7 @@
     <ClInclude Include="ManagedCefBrowserAdapter.h" />
     <ClInclude Include="CefSettings.h" />
     <ClInclude Include="Internals\Serialization\Primitives.h" />
+    <ClInclude Include="Internals\Messaging\ProcessMessageDelegate.h" />
     <ClInclude Include="SchemeHandlerFactoryWrapper.h" />
     <ClInclude Include="ResourceHandlerWrapper.h" />
     <ClInclude Include="CookieAsyncWrapper.h" />
diff --git a/CefSharp.Core/CefSharp.Core.vcxproj.filters b/CefSharp.Core/CefSharp.Core.vcxproj.filters
index 6c28533b63..ff4ad11d08 100644
--- a/CefSharp.Core/CefSharp.Core.vcxproj.filters
+++ b/CefSharp.Core/CefSharp.Core.vcxproj.filters
@@ -193,6 +193,12 @@
     <ClInclude Include="Internals\Serialization\Primitives.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Internals\Messaging\ProcessMessageDelegate.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Internals\Messaging\Messages.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Internals\CefSharpBrowserWrapper.h">
diff --git a/CefSharp.Core/Internals/ClientAdapter.cpp b/CefSharp.Core/Internals/ClientAdapter.cpp
index c2b846b5dc..379c27a21e 100644
--- a/CefSharp.Core/Internals/ClientAdapter.cpp
+++ b/CefSharp.Core/Internals/ClientAdapter.cpp
@@ -798,5 +798,23 @@ namespace CefSharp
                 handler->OnDownloadUpdated(browserWrapper, TypeConversion::FromNative(download_item), callbackWrapper);
             }
         }
+
+
+        bool ClientAdapter::OnProcessMessageReceived(CefRefPtr<CefBrowser> browser, CefProcessId source_process, CefRefPtr<CefProcessMessage> message)
+        {
+            bool handled = false;
+
+            for (ProcessMessageDelegateSet::iterator it = _processMessageDelegates.begin(); it != _processMessageDelegates.end() && !handled; it++)
+            {
+                handled = (*it)->OnProcessMessageReceived(browser, source_process, message);
+            }
+
+            return handled;
+        }
+
+        void ClientAdapter::AddProcessMessageDelegate(CefRefPtr<Internals::Messaging::ProcessMessageDelegate> processMessageDelegate)
+        {
+            _processMessageDelegates.insert(processMessageDelegate);
+        }
     }
 }
diff --git a/CefSharp.Core/Internals/ClientAdapter.h b/CefSharp.Core/Internals/ClientAdapter.h
index bda1488032..d9bbdd11ad 100644
--- a/CefSharp.Core/Internals/ClientAdapter.h
+++ b/CefSharp.Core/Internals/ClientAdapter.h
@@ -10,6 +10,7 @@
 #include "include/cef_client.h"
 #include "include/cef_render_process_handler.h"
 #include "include/internal/cef_types.h"
+#include "Internals/Messaging/ProcessMessageDelegate.h"
 
 using namespace System;
 
@@ -17,6 +18,8 @@ namespace CefSharp
 {
     namespace Internals
     {
+        using namespace Messaging;
+
         private class ClientAdapter : public CefClient,
             public CefLifeSpanHandler,
             public CefLoadHandler,
@@ -35,6 +38,7 @@ namespace CefSharp
             gcroot<IWebBrowserInternal^> _browserControl;
             HWND _browserHwnd;
             CefRefPtr<CefBrowser> _cefBrowser;
+            ProcessMessageDelegateSet _processMessageDelegates;
             gcroot<Dictionary<int, IBrowser^>^> _popupBrowsers;
             gcroot<String^> _tooltip;
             gcroot<IBrowserAdapter^> _browserAdapter;
@@ -82,6 +86,8 @@ namespace CefSharp
             virtual DECL CefRefPtr<CefDialogHandler> GetDialogHandler() OVERRIDE { return this; }
             virtual DECL CefRefPtr<CefDragHandler> GetDragHandler() OVERRIDE { return this; }
             virtual DECL CefRefPtr<CefGeolocationHandler> GetGeolocationHandler() OVERRIDE { return this; }
+            virtual DECL bool OnProcessMessageReceived(CefRefPtr<CefBrowser> browser, CefProcessId source_process, CefRefPtr<CefProcessMessage> message) OVERRIDE;
+
 
             // CefLifeSpanHandler
             virtual DECL bool OnBeforePopup(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
@@ -158,6 +164,9 @@ namespace CefSharp
             virtual void OnDownloadUpdated(CefRefPtr<CefBrowser> browser, CefRefPtr<CefDownloadItem> download_item,
                 CefRefPtr<CefDownloadItemCallback> callback) OVERRIDE;
 
+            void AddProcessMessageDelegate(CefRefPtr<Internals::Messaging::ProcessMessageDelegate> processMessageDelegate);
+
+
             IMPLEMENT_REFCOUNTING(ClientAdapter);
         };
     }
diff --git a/CefSharp.Core/Internals/Messaging/Messages.h b/CefSharp.Core/Internals/Messaging/Messages.h
new file mode 100644
index 0000000000..05a5e80feb
--- /dev/null
+++ b/CefSharp.Core/Internals/Messaging/Messages.h
@@ -0,0 +1,23 @@
+// Copyright © 2010-2015 The CefSharp Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+
+#pragma once
+
+#include "include/cef_base.h"
+
+namespace CefSharp
+{
+    namespace Internals
+    {
+        namespace Messaging
+        {
+            //contains process message names for all handled messages
+
+            //Message containing a script to be evaluated
+            const CefString kEvaluateJavascript = "EvaluateJavascript";
+            //Message containing the result for a given evaluation
+            const CefString kEvaluateJavascriptDone = "EvaluateJavascriptDone";
+        }
+    }
+}
\ No newline at end of file
diff --git a/CefSharp.Core/Internals/Messaging/ProcessMessageDelegate.h b/CefSharp.Core/Internals/Messaging/ProcessMessageDelegate.h
new file mode 100644
index 0000000000..5e0fb347e4
--- /dev/null
+++ b/CefSharp.Core/Internals/Messaging/ProcessMessageDelegate.h
@@ -0,0 +1,32 @@
+// Copyright © 2010-2015 The CefSharp Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+
+#pragma once
+
+#include <set>
+
+#include "include\cef_base.h"
+#include "include\cef_app.h"
+
+namespace CefSharp
+{
+    namespace Internals
+    {
+        namespace Messaging
+        {
+            //Specific process message handler classes can inherit from this one
+            class ProcessMessageDelegate : public virtual CefBase
+            {
+            public:
+                //Will be called for uhandled received process messages.
+                //Returns false if message wasn't handled, true if it was
+                virtual bool OnProcessMessageReceived(CefRefPtr<CefBrowser> browser, CefProcessId source_process, CefRefPtr<CefProcessMessage> message) = 0;
+
+                IMPLEMENT_REFCOUNTING(ProcessMessageDelegate);
+            };
+
+            typedef std::set<CefRefPtr<ProcessMessageDelegate>> ProcessMessageDelegateSet;
+        }
+    }
+}
\ No newline at end of file