diff --git a/common/ostproto.pro b/common/ostproto.pro
index 7497d0c..d72b21b 100644
--- a/common/ostproto.pro
+++ b/common/ostproto.pro
@@ -70,10 +70,10 @@ HEADERS += \
     tcp.h \
     udp.h \
     textproto.h \
-    hexdump.h
+    hexdump.h \
+    userscript.h 
 
 HEADERS1 += \
-    userscript.h \
     sample.h
 
 SOURCES = \
@@ -103,10 +103,10 @@ SOURCES += \
     tcp.cpp \
     udp.cpp \
     textproto.cpp \
-    hexdump.cpp
+    hexdump.cpp \
+    userscript.cpp
 
 SOURCES1 += \
-    userscript.cpp \
     sample.cpp
 
 QMAKE_DISTCLEAN += object_script.*
diff --git a/common/ostprotogui.pro b/common/ostprotogui.pro
index 3eab07e..8be6d19 100644
--- a/common/ostprotogui.pro
+++ b/common/ostprotogui.pro
@@ -1,6 +1,6 @@
 TEMPLATE = lib
 CONFIG += qt staticlib
-QT += network xml
+QT += network xml script
 INCLUDEPATH += "../extra/qhexedit2/src"
 LIBS += \
     -lprotobuf
@@ -24,10 +24,10 @@ FORMS += \
     tcp.ui \
     udp.ui \
     textproto.ui \
-    hexdump.ui
+    hexdump.ui \
+    userscript.ui
 
 FORMS1 += \
-    userscript.ui \
     sample.ui 
 
 PROTOS = \
@@ -72,7 +72,8 @@ HEADERS += \
     tcpconfig.h \
     udpconfig.h \
     textprotoconfig.h \
-    hexdumpconfig.h
+    hexdumpconfig.h \
+    userscriptconfig.h
 
 SOURCES += \
     ostprotolib.cpp \
@@ -103,7 +104,8 @@ SOURCES += \
     tcpconfig.cpp \
     udpconfig.cpp \
     textprotoconfig.cpp \
-    hexdumpconfig.cpp
+    hexdumpconfig.cpp \
+    userscriptconfig.cpp
 
 QMAKE_DISTCLEAN += object_script.*
 
diff --git a/common/protocolmanager.cpp b/common/protocolmanager.cpp
index beda573..c35dc1c 100644
--- a/common/protocolmanager.cpp
+++ b/common/protocolmanager.cpp
@@ -22,7 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 
 #include "protocol.pb.h"
 #if 0
-#include "userscript.h"
 #include "sample.h"
 #else
 #include "mac.h"
@@ -54,6 +53,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 #include "textproto.h"
 // Special Protos
 #include "hexdump.h"
+#include "userscript.h"
 #endif
 
 ProtocolManager *OstProtocolManager;
@@ -64,8 +64,6 @@ ProtocolManager::ProtocolManager()
      themselves (once this is done remove the #includes for all the protocols)
      */
 #if 0
-    registerProtocol(OstProto::Protocol::kUserScriptFieldNumber,
-            (void*) UserScriptProtocol::createInstance);
     registerProtocol(OstProto::Protocol::kSampleFieldNumber,
             (void*) SampleProtocol::createInstance);
 #else
@@ -130,6 +128,8 @@ ProtocolManager::ProtocolManager()
     // Special Protocols
     registerProtocol(OstProto::Protocol::kHexDumpFieldNumber,
             (void*) HexDumpProtocol::createInstance);
+    registerProtocol(OstProto::Protocol::kUserScriptFieldNumber,
+            (void*) UserScriptProtocol::createInstance);
 
 #endif
     populateNeighbourProtocols();
diff --git a/common/protocolwidgetfactory.cpp b/common/protocolwidgetfactory.cpp
index 927c565..78f47d1 100644
--- a/common/protocolwidgetfactory.cpp
+++ b/common/protocolwidgetfactory.cpp
@@ -48,6 +48,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 #include "textprotoconfig.h"
 // Special Protocol Widgets
 #include "hexdumpconfig.h"
+#include "userscriptconfig.h"
 
 ProtocolWidgetFactory *OstProtocolWidgetFactory;
 QMap<int, void*> ProtocolWidgetFactory::configWidgetFactory;
@@ -144,6 +145,9 @@ ProtocolWidgetFactory::ProtocolWidgetFactory()
     OstProtocolWidgetFactory->registerProtocolConfigWidget(
             OstProto::Protocol::kHexDumpFieldNumber, 
             (void*) HexDumpConfigForm::createInstance);
+    OstProtocolWidgetFactory->registerProtocolConfigWidget(
+            OstProto::Protocol::kUserScriptFieldNumber, 
+            (void*) UserScriptConfigForm::createInstance);
 }
 
 ProtocolWidgetFactory::~ProtocolWidgetFactory()
diff --git a/common/userscript.cpp b/common/userscript.cpp
index fece963..f00ab6c 100644
--- a/common/userscript.cpp
+++ b/common/userscript.cpp
@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2010 Srivats P.
+Copyright (C) 2010, 2014 Srivats P.
 
 This file is part of "Ostinato"
 
@@ -19,54 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 
 #include "userscript.h"
 
-#include <QMessageBox>
-
-//
-// -------------------- UserScriptConfigForm --------------------
-//
-
-UserScriptConfigForm::UserScriptConfigForm(UserScriptProtocol *protocol,
-    QWidget *parent) : QWidget(parent), protocol_(protocol)
-{
-    setupUi(this);
-    updateStatus();
-}
-
-void UserScriptConfigForm::updateStatus()
-{
-    if (protocol_->isScriptValid())
-    {
-        statusLabel->setText(QString("<font color=\"green\">Success</font>"));
-        compileButton->setDisabled(true);
-    }
-    else
-    {
-        statusLabel->setText(
-                QString("<font color=\"red\">Error: %1: %2</font>").arg(
-                protocol_->userScriptErrorLineNumber()).arg(
-                protocol_->userScriptErrorText()));
-        compileButton->setEnabled(true);
-    }
-}
-
-void UserScriptConfigForm::on_programEdit_textChanged()
-{
-    compileButton->setEnabled(true);
-}
-
-void UserScriptConfigForm::on_compileButton_clicked(bool /*checked*/)
-{
-    protocol_->storeConfigWidget();
-    if (!protocol_->isScriptValid())
-    {
-        QMessageBox::critical(this, "Error", 
-            QString("%1: %2").arg(
-                protocol_->userScriptErrorLineNumber()).arg(
-                protocol_->userScriptErrorText()));
-    }
-    updateStatus();
-}
-
 //
 // -------------------- UserScriptProtocol --------------------
 //
@@ -75,7 +27,6 @@ UserScriptProtocol::UserScriptProtocol(StreamBase *stream, AbstractProtocol *par
     : AbstractProtocol(stream, parent),
         userProtocol_(this)
 {
-    configForm = NULL;
     isScriptValid_ = false;
     errorLineNumber_ = 0;
 
@@ -88,7 +39,6 @@ UserScriptProtocol::UserScriptProtocol(StreamBase *stream, AbstractProtocol *par
 
 UserScriptProtocol::~UserScriptProtocol()
 {
-    delete configForm;
 }
 
 AbstractProtocol* UserScriptProtocol::createInstance(StreamBase *stream,
@@ -230,6 +180,7 @@ bool UserScriptProtocol::setFieldData(int index, const QVariant &value,
         case userScript_program:
         {
             data.set_program(value.toString().toStdString());
+            evaluateUserScript();
             break;
         }
         default:
@@ -308,32 +259,6 @@ _do_default:
     return AbstractProtocol::protocolFrameCksum(streamIndex, cksumType);
 }
 
-QWidget* UserScriptProtocol::configWidget()
-{
-    if (configForm == NULL)
-    {
-        configForm = new UserScriptConfigForm(this);
-        loadConfigWidget();
-    }
-
-    return configForm;
-}
-
-void UserScriptProtocol::loadConfigWidget()
-{
-    configWidget();
-
-    configForm->programEdit->setPlainText(
-        fieldData(userScript_program, FieldValue).toString());
-}
-
-void UserScriptProtocol::storeConfigWidget()
-{
-    configWidget();
-    setFieldData(userScript_program, configForm->programEdit->toPlainText());
-    evaluateUserScript();
-}
-
 void UserScriptProtocol::evaluateUserScript() const
 {
     QScriptValue    userFunction;
diff --git a/common/userscript.h b/common/userscript.h
index 99ac226..f6bf6ef 100644
--- a/common/userscript.h
+++ b/common/userscript.h
@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2010 Srivats P.
+Copyright (C) 2010, 2014 Srivats P.
 
 This file is part of "Ostinato"
 
@@ -22,7 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 
 #include "abstractprotocol.h"
 #include "userscript.pb.h"
-#include "ui_userscript.h"
 
 #include <QScriptEngine>
 #include <QScriptValue>
@@ -99,30 +98,17 @@ private:
     int protocolFrameVariableCount_;
 };
 
-
-
-class UserScriptConfigForm : public QWidget, public Ui::UserScript
-{
-    Q_OBJECT
-
-public:
-    UserScriptConfigForm(UserScriptProtocol *protocol, QWidget *parent = 0);
-
-private:
-    void updateStatus();
-    UserScriptProtocol        *protocol_;
-
-private slots:
-    void on_programEdit_textChanged();
-    void on_compileButton_clicked(bool checked = false);
-};
-
-
-
 class UserScriptProtocol : public AbstractProtocol
 {
-
 public:
+    enum userScriptfield
+    {
+        // Frame Fields
+        userScript_program = 0,
+
+        userScript_fieldCount
+    };
+
     UserScriptProtocol(StreamBase *stream, AbstractProtocol *parent = 0);
     virtual ~UserScriptProtocol();
 
@@ -154,10 +140,6 @@ public:
     virtual quint32 protocolFrameCksum(int streamIndex = 0,
             CksumType cksumType = CksumIp) const;
 
-    virtual QWidget* configWidget();
-    virtual void loadConfigWidget();
-    virtual void storeConfigWidget();
-
     void evaluateUserScript() const;
     bool isScriptValid() const;
     int userScriptErrorLineNumber() const;
@@ -166,15 +148,7 @@ public:
 private:
     int userScriptLineCount() const;
 
-    enum userScriptfield
-    {
-        // Frame Fields
-        userScript_program = 0,
-
-        userScript_fieldCount
-    };
     OstProto::UserScript    data;
-    UserScriptConfigForm    *configForm;
 
     mutable QScriptEngine   engine_;
     mutable UserProtocol    userProtocol_;
@@ -186,5 +160,3 @@ private:
 };
 
 #endif
-
-/* vim: set shiftwidth=4 tabstop=8 softtabstop=4 expandtab: */
diff --git a/common/userscriptconfig.cpp b/common/userscriptconfig.cpp
new file mode 100644
index 0000000..85e0aba
--- /dev/null
+++ b/common/userscriptconfig.cpp
@@ -0,0 +1,109 @@
+/*
+Copyright (C) 2010, 2014 Srivats P.
+
+This file is part of "Ostinato"
+
+This is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+#include "userscriptconfig.h"
+#include "userscript.h"
+
+#include <QMessageBox>
+
+UserScriptConfigForm::UserScriptConfigForm(QWidget *parent) 
+    : AbstractProtocolConfigForm(parent)
+{
+    setupUi(this);
+
+    // The protocol_ (UserScriptProtocol) is a dummy protocol internal
+    // to UserScriptConfigForm whose sole purpose is to "compile" the script
+    // so that the configForm widget can display the compilation result.
+    // It is *not* used for actual packet contents at any time
+    protocol_ = new UserScriptProtocol(NULL);
+    compileScript();
+}
+
+UserScriptConfigForm::~UserScriptConfigForm() 
+{
+    delete protocol_;
+}
+
+UserScriptConfigForm* UserScriptConfigForm::createInstance()
+{
+    return new UserScriptConfigForm;
+}
+
+void UserScriptConfigForm::loadWidget(AbstractProtocol *proto)
+{
+    programEdit->setPlainText(
+        proto->fieldData(
+            UserScriptProtocol::userScript_program, 
+            AbstractProtocol::FieldValue
+        ).toString());
+
+    compileScript();
+}
+
+void UserScriptConfigForm::storeWidget(AbstractProtocol *proto)
+{
+    proto->setFieldData(
+            UserScriptProtocol::userScript_program,
+            programEdit->toPlainText());
+}
+
+//
+// ----- private methods
+//
+void UserScriptConfigForm::compileScript()
+{
+    // storeWidget() will save the updated userscript into
+    // the protocol_ which in turn triggers the protocol_ to
+    // compile it
+    storeWidget(protocol_);
+    if (protocol_->isScriptValid())
+    {
+        statusLabel->setText(QString("<font color=\"green\">Success</font>"));
+        compileButton->setDisabled(true);
+    }
+    else
+    {
+        statusLabel->setText(
+                QString("<font color=\"red\">Error: %1: %2</font>").arg(
+                protocol_->userScriptErrorLineNumber()).arg(
+                protocol_->userScriptErrorText()));
+        compileButton->setEnabled(true);
+    }
+}
+
+//
+// ----- private slots
+//
+void UserScriptConfigForm::on_programEdit_textChanged()
+{
+    compileButton->setEnabled(true);
+}
+
+void UserScriptConfigForm::on_compileButton_clicked(bool /*checked*/)
+{
+    compileScript();
+    if (!protocol_->isScriptValid())
+    {
+        QMessageBox::critical(this, "Error", 
+            QString("%1: %2").arg(
+                protocol_->userScriptErrorLineNumber()).arg(
+                protocol_->userScriptErrorText()));
+    }
+}
+
diff --git a/common/userscriptconfig.h b/common/userscriptconfig.h
new file mode 100644
index 0000000..8285103
--- /dev/null
+++ b/common/userscriptconfig.h
@@ -0,0 +1,51 @@
+/*
+Copyright (C) 2010, 2014 Srivats P.
+
+This file is part of "Ostinato"
+
+This is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+#ifndef _USER_SCRIPT_CONFIG_H
+#define _USER_SCRIPT_CONFIG_H
+
+#include "abstractprotocolconfig.h"
+#include "ui_userscript.h"
+
+class UserScriptProtocol;
+
+class UserScriptConfigForm : 
+    public AbstractProtocolConfigForm,
+    private Ui::UserScript
+{
+    Q_OBJECT
+
+public:
+    UserScriptConfigForm(QWidget *parent = 0);
+    virtual ~UserScriptConfigForm();
+
+    static UserScriptConfigForm* createInstance();
+
+    virtual void loadWidget(AbstractProtocol *proto);
+    virtual void storeWidget(AbstractProtocol *proto);
+
+private:
+    void compileScript();
+    UserScriptProtocol        *protocol_;
+
+private slots:
+    void on_programEdit_textChanged();
+    void on_compileButton_clicked(bool checked = false);
+};
+#endif