diff --git a/Code/Mantid/MantidQt/CustomDialogs/CMakeLists.txt b/Code/Mantid/MantidQt/CustomDialogs/CMakeLists.txt
index 62b907313169ceacd1e79bae28c2d8a34286bd17..c226b44e11c349a96731ca7b8849b6b6fdd4887d 100644
--- a/Code/Mantid/MantidQt/CustomDialogs/CMakeLists.txt
+++ b/Code/Mantid/MantidQt/CustomDialogs/CMakeLists.txt
@@ -5,6 +5,7 @@ set ( SRC_FILES src/CreateSampleShapeDialog.cpp
src/LoadDialog.cpp
src/LoadAsciiDialog.cpp
src/LoadDAEDialog.cpp
+ src/LoadInstrumentDialog.cpp
src/LoadRawDialog.cpp
src/LOQScriptInputDialog.cpp
src/MantidGLWidget.cpp
@@ -23,6 +24,7 @@ set ( MOC_FILES inc/MantidQtCustomDialogs/CreateSampleShapeDialog.h
inc/MantidQtCustomDialogs/LoadDialog.h
inc/MantidQtCustomDialogs/LoadAsciiDialog.h
inc/MantidQtCustomDialogs/LoadDAEDialog.h
+ inc/MantidQtCustomDialogs/LoadInstrumentDialog.h
inc/MantidQtCustomDialogs/LoadRawDialog.h
inc/MantidQtCustomDialogs/LOQScriptInputDialog.h
inc/MantidQtCustomDialogs/MantidGLWidget.h
@@ -42,6 +44,7 @@ set ( UI_FILES inc/MantidQtCustomDialogs/CreateSampleShapeDialog.ui
inc/MantidQtCustomDialogs/LOQScriptInputDialog.ui
inc/MantidQtCustomDialogs/PlotAsymmetryByLogValueDialog.ui
inc/MantidQtCustomDialogs/LoadDialog.ui
+ inc/MantidQtCustomDialogs/LoadInstrumentDialog.ui
inc/MantidQtCustomDialogs/StartLiveDataDialog.ui
inc/MantidQtCustomDialogs/SlicingAlgorithmDialog.ui
inc/MantidQtCustomDialogs/FitDialog.ui
diff --git a/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.h b/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.h
new file mode 100644
index 0000000000000000000000000000000000000000..03c408149171bd5871fb4e67ff8915c605310710
--- /dev/null
+++ b/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.h
@@ -0,0 +1,50 @@
+#ifndef MANTIDQTCUSTOMDIALOGS_LOAD_INSTRUMENT_DIALOG_H_
+#define MANTIDQTCUSTOMDIALOGS_LOAD_INSTRUMENT_DIALOG_H_
+
+//----------------------
+// Includes
+//----------------------
+#include "ui_LoadInstrumentDialog.h"
+#include "MantidQtAPI/AlgorithmDialog.h"
+#include "MantidAPI/IAlgorithm.h"
+#include "MantidAPI/Algorithm.h"
+
+namespace MantidQt
+{
+namespace CustomDialogs
+{
+
+/*
+Class SlicingAlgorithmDialog
+
+*/
+class LoadInstrumentDialog : public MantidQt::API::AlgorithmDialog
+{
+ Q_OBJECT
+public:
+
+ /// Default Constructor
+ LoadInstrumentDialog(QWidget *parent = 0);
+
+ /// Destructor
+ ~LoadInstrumentDialog();
+
+protected:
+
+ /// view
+ Ui::Dialog ui;
+
+protected slots:
+
+ void onBrowse();
+ void accept();
+
+private:
+ /// Initialize the layout
+ virtual void initLayout();
+
+};
+}
+}
+
+#endif
diff --git a/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.ui b/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.ui
new file mode 100644
index 0000000000000000000000000000000000000000..eade5e127f6019a350dff2d8425f58982cb3f6ac
--- /dev/null
+++ b/Code/Mantid/MantidQt/CustomDialogs/inc/MantidQtCustomDialogs/LoadInstrumentDialog.ui
@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+ <property name="geometry">
+ <rect>
+ <x>0</x>
+ <y>0</y>
+ <width>400</width>
+ <height>300</height>
+ </rect>
+ </property>
+ <property name="windowTitle">
+ <string>LoadInstrument</string>
+ </property>
+ <layout class="QVBoxLayout" name="verticalLayout">
+ <item>
+ <layout class="QGridLayout" name="main_layout">
+ <item row="1" column="0">
+ <widget class="QLabel" name="lbl_workspace">
+ <property name="text">
+ <string>Workspace</string>
+ </property>
+ </widget>
+ </item>
+ <item row="2" column="0">
+ <widget class="QLabel" name="lbl_instrument_file">
+ <property name="text">
+ <string>Instrument Definition File</string>
+ </property>
+ </widget>
+ </item>
+ <item row="3" column="0">
+ <widget class="QLabel" name="lbl_instrument_name">
+ <property name="text">
+ <string>Instrument Name</string>
+ </property>
+ </widget>
+ </item>
+ <item row="4" column="0">
+ <widget class="QLabel" name="lbl_idf_xml">
+ <property name="text">
+ <string>Instrument Definition XML</string>
+ </property>
+ </widget>
+ </item>
+ <item row="2" column="1">
+ <widget class="QLineEdit" name="txt_idf"/>
+ </item>
+ <item row="5" column="0">
+ <widget class="QCheckBox" name="ck_rewrite_spec_map">
+ <property name="layoutDirection">
+ <enum>Qt::RightToLeft</enum>
+ </property>
+ <property name="text">
+ <string>RewriteSpectraMap</string>
+ </property>
+ </widget>
+ </item>
+ <item row="3" column="1">
+ <layout class="QHBoxLayout" name="idf_validator_layout">
+ <item row="2" column="3">
+ <widget class="QLineEdit" name="txt_instrument_name"/>
+ </item>
+ </layout>
+ </item>
+ <item row="4" column="1">
+ <widget class="QLineEdit" name="txt_instrument_xml"/>
+ </item>
+ <item row="2" column="2">
+ <widget class="QPushButton" name="btn_idf">
+ <property name="text">
+ <string>Browse</string>
+ </property>
+ </widget>
+ </item>
+ <item row="1" column="1">
+ <widget class="MantidQt::MantidWidgets::WorkspaceSelector" name="workspaceSelector"/>
+ </item>
+ <item row="1" column="2">
+ <layout class="QHBoxLayout" name="ws_validator_layout"/>
+ </item>
+ </layout>
+ </item>
+ <item>
+ <widget class="QDialogButtonBox" name="controls">
+ <property name="orientation">
+ <enum>Qt::Horizontal</enum>
+ </property>
+ <property name="standardButtons">
+ <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+ </property>
+ </widget>
+ </item>
+ </layout>
+ </widget>
+ <customwidgets>
+ <customwidget>
+ <class>MantidQt::MantidWidgets::WorkspaceSelector</class>
+ <extends>QComboBox</extends>
+ <header>MantidQtMantidWidgets/WorkspaceSelector.h</header>
+ </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections>
+ <connection>
+ <sender>controls</sender>
+ <signal>accepted()</signal>
+ <receiver>Dialog</receiver>
+ <slot>accept()</slot>
+ <hints>
+ <hint type="sourcelabel">
+ <x>248</x>
+ <y>254</y>
+ </hint>
+ <hint type="destinationlabel">
+ <x>157</x>
+ <y>274</y>
+ </hint>
+ </hints>
+ </connection>
+ <connection>
+ <sender>controls</sender>
+ <signal>rejected()</signal>
+ <receiver>Dialog</receiver>
+ <slot>reject()</slot>
+ <hints>
+ <hint type="sourcelabel">
+ <x>316</x>
+ <y>260</y>
+ </hint>
+ <hint type="destinationlabel">
+ <x>286</x>
+ <y>274</y>
+ </hint>
+ </hints>
+ </connection>
+ </connections>
+</ui>
diff --git a/Code/Mantid/MantidQt/CustomDialogs/src/LoadInstrumentDialog.cpp b/Code/Mantid/MantidQt/CustomDialogs/src/LoadInstrumentDialog.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..802f1e232ff7d17fb739053f8a837c81f49c6dad
--- /dev/null
+++ b/Code/Mantid/MantidQt/CustomDialogs/src/LoadInstrumentDialog.cpp
@@ -0,0 +1,96 @@
+#include "MantidQtCustomDialogs/LoadInstrumentDialog.h"
+
+#include <QFileDialog>
+#include <QDir>
+#include <QBoxLayout>
+#include <QMessageBox>
+
+using namespace Mantid::API;
+
+namespace MantidQt
+{
+ namespace CustomDialogs
+ {
+ DECLARE_DIALOG(LoadInstrumentDialog);
+
+ /**
+ Constructor
+ @param parent : parent widget
+ */
+ LoadInstrumentDialog::LoadInstrumentDialog(QWidget* parent) : AlgorithmDialog(parent)
+ {
+ }
+
+
+ /// Set up the dialog layout
+ void LoadInstrumentDialog::initLayout()
+ {
+ ui.setupUi(this);
+ this->setWindowTitle(m_algName);
+
+ // Add the description of the algorithm text to the dialog.
+ QVBoxLayout* tempLayout = new QVBoxLayout;
+ this->addOptionalMessage(tempLayout);
+ ui.main_layout->addLayout(tempLayout, 0, 0, 1, 3);
+
+ tie(ui.workspaceSelector, "Workspace", ui.ws_validator_layout);
+ tie(ui.txt_idf, "Filename", ui.idf_validator_layout);
+ tie(ui.txt_instrument_name, "InstrumentName");
+ tie(ui.txt_instrument_xml, "InstrumentXML");
+ tie(ui.ck_rewrite_spec_map, "RewriteSpectraMap");
+
+ ui.workspaceSelector->setValidatingAlgorithm(m_algName);
+
+ connect(ui.controls, SIGNAL(accepted()), this, SLOT(accept()));
+
+ connect(ui.ck_rewrite_spec_map, SIGNAL(clicked(bool)), this, SLOT(onRewriteSpectraMapClicked(bool)));
+ }
+
+ /**
+ Event handler for the browsing click event.
+ */
+ void LoadInstrumentDialog::onBrowse()
+ {
+ QFileDialog dialog;
+ dialog.setDirectory(QDir::homePath());
+ dialog.setNameFilter("IDF (*.xml)");
+ if (dialog.exec())
+ {
+ ui.txt_idf->setText(dialog.selectedFile());
+ }
+ }
+
+ /**
+ Event handler for the accepted slot. Called when the user wishes to execute the algorithm.
+
+ Provides additional confirmation that the spectra-detector map will be overwritten if selected.
+ */
+ void LoadInstrumentDialog::accept()
+ {
+ if(ui.ck_rewrite_spec_map->isChecked())
+ {
+ QMessageBox warningBox;
+ warningBox.setText("Are you sure you want to re-write the spectra detector map with a 1:1 mapping?.");
+ warningBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
+ int result = warningBox.exec();
+ if(result == QMessageBox::Cancel)
+ {
+ ui.ck_rewrite_spec_map->setChecked(false);
+ }
+ else
+ {
+ AlgorithmDialog::accept();
+ }
+ }
+
+ }
+
+ /**
+ Destructor
+ */
+ LoadInstrumentDialog::~LoadInstrumentDialog()
+ {
+ }
+
+ }
+}
\ No newline at end of file