diff --git a/src/speedlimitdlg.cpp b/src/speedlimitdlg.cpp
new file mode 100644
index 000000000..7272587d3
--- /dev/null
+++ b/src/speedlimitdlg.cpp
@@ -0,0 +1,114 @@
+/*
+ * Bittorrent Client using Qt4 and libtorrent.
+ * Copyright (C) 2006  Christophe Dumez
+ *
+ * This program 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * Contact : chris@qbittorrent.org
+ */
+
+#include "speedlimitdlg.h"
+
+SpeedLimitDialog::SpeedLimitDialog(QWidget *parent): QDialog(parent)
+{
+    setupUi(this);
+    qDebug("Bandwidth allocation dialog creation");
+    // Connect to slots
+    connect(bandwidthSlider, SIGNAL(valueChanged(int)), this, SLOT(updateSpinValue(int)));
+    connect(spinBandwidth, SIGNAL(valueChanged(int)), this, SLOT(updateSliderValue(int)));
+    move(misc::screenCenter(this));
+}
+
+SpeedLimitDialog::~SpeedLimitDialog()
+{
+    qDebug("Deleting bandwidth allocation dialog");
+}
+
+// -2: if cancel
+long SpeedLimitDialog::askSpeedLimit(bool *ok, QString title, long default_value, long max_value)
+{
+    SpeedLimitDialog dlg;
+    dlg.setWindowTitle(title);
+    dlg.setMaxValue(max_value / 1024.);
+    dlg.setDefaultValue(default_value / 1024.);
+    if (dlg.exec() == QDialog::Accepted) {
+        *ok = true;
+        int val = dlg.getSpeedLimit();
+        if (val <= 0)
+            return -1;
+        return val * 1024;
+    }
+    else {
+        *ok = false;
+        return -2;
+    }
+}
+
+void SpeedLimitDialog::updateSpinValue(int val) const
+{
+    qDebug("Called updateSpinValue with %d", val);
+    if (val <= 0) {
+        spinBandwidth->setValue(0);
+        spinBandwidth->setSpecialValueText(QString::fromUtf8("∞"));
+        spinBandwidth->setSuffix(QString::fromUtf8(""));
+    }
+    else {
+        spinBandwidth->setValue(val);
+        spinBandwidth->setSuffix(" " + tr("KiB/s"));
+    }
+}
+
+void SpeedLimitDialog::updateSliderValue(int val) const
+{
+    if (val <= 0) {
+        spinBandwidth->setValue(0);
+        spinBandwidth->setSpecialValueText(QString::fromUtf8("∞"));
+        spinBandwidth->setSuffix(QString::fromUtf8(""));
+    }
+    bandwidthSlider->setValue(val);
+}
+
+long SpeedLimitDialog::getSpeedLimit() const
+{
+    long val = bandwidthSlider->value();
+    if (val > 0)
+        return val;
+    return -1;
+}
+
+void SpeedLimitDialog::setMaxValue(long val) const
+{
+    if (val > 0) {
+        bandwidthSlider->setMaximum(val);
+        spinBandwidth->setMaximum(val);
+    }
+}
+
+void SpeedLimitDialog::setDefaultValue(long val) const
+{
+    if (val < 0) val = 0;
+    if (val > bandwidthSlider->maximum()) val = bandwidthSlider->maximum();
+    bandwidthSlider->setValue(val);
+    updateSpinValue(val);
+}
\ No newline at end of file
diff --git a/src/speedlimitdlg.h b/src/speedlimitdlg.h
index 7e4cd8da8..fbf056aed 100644
--- a/src/speedlimitdlg.h
+++ b/src/speedlimitdlg.h
@@ -38,82 +38,18 @@
 #include "qbtsession.h"
 
 class SpeedLimitDialog : public QDialog, private Ui_bandwidth_dlg {
-  Q_OBJECT
+    Q_OBJECT
+public:
+    explicit SpeedLimitDialog(QWidget *parent=0);
+    ~SpeedLimitDialog();
+    static long askSpeedLimit(bool *ok, QString title, long default_value, long max_value=10240000);
 
-  public:
-    SpeedLimitDialog(QWidget *parent=0): QDialog(parent) {
-      setupUi(this);
-      qDebug("Bandwidth allocation dialog creation");
-      // Connect to slots
-      connect(bandwidthSlider, SIGNAL(valueChanged(int)), this, SLOT(updateSpinValue(int)));
-      connect(spinBandwidth, SIGNAL(valueChanged(int)), this, SLOT(updateSliderValue(int)));
-      move(misc::screenCenter(this));
-    }
-
-    ~SpeedLimitDialog() {
-      qDebug("Deleting bandwidth allocation dialog");
-    }
-
-    // -2: if cancel
-    static long askSpeedLimit(bool *ok, QString title, long default_value, long max_value=10240000) {
-      SpeedLimitDialog dlg;
-      dlg.setWindowTitle(title);
-      dlg.setMaxValue(max_value/1024.);
-      dlg.setDefaultValue(default_value/1024.);
-      if (dlg.exec() == QDialog::Accepted) {
-        *ok = true;
-        int val = dlg.getSpeedLimit();
-        if (val <= 0)
-          return -1;
-        return val*1024;
-      } else {
-        *ok = false;
-        return -2;
-      }
-    }
-
-  protected slots:
-    void updateSpinValue(int val) const {
-      qDebug("Called updateSpinValue with %d", val);
-      if (val <= 0) {
-        spinBandwidth->setValue(0);
-        spinBandwidth->setSpecialValueText(QString::fromUtf8("∞"));
-        spinBandwidth->setSuffix(QString::fromUtf8(""));
-      }else{
-        spinBandwidth->setValue(val);
-        spinBandwidth->setSuffix(" "+tr("KiB/s"));
-      }
-    }
-
-    void updateSliderValue(int val) const {
-      if (val <= 0) {
-        spinBandwidth->setValue(0);
-        spinBandwidth->setSpecialValueText(QString::fromUtf8("∞"));
-        spinBandwidth->setSuffix(QString::fromUtf8(""));
-      }
-      bandwidthSlider->setValue(val);
-    }
-
-    long getSpeedLimit() const {
-      long val = bandwidthSlider->value();
-      if (val > 0)
-        return val;
-      return -1;
-    }
-
-    void setMaxValue(long val) const {
-      if (val > 0) {
-        bandwidthSlider->setMaximum(val);
-        spinBandwidth->setMaximum(val);
-      }
-    }
-
-    void setDefaultValue(long val) const {
-      if (val < 0) val = 0;
-      if (val > bandwidthSlider->maximum()) val = bandwidthSlider->maximum();
-      bandwidthSlider->setValue(val);
-      updateSpinValue(val);
-    }
+protected slots:
+    void updateSpinValue(int val) const;
+    void updateSliderValue(int val) const;
+    long getSpeedLimit() const;
+    void setMaxValue(long val) const;
+    void setDefaultValue(long val) const;
 };
 
 #endif
diff --git a/src/src.pro b/src/src.pro
index f6422b9c2..6a84dde4a 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -183,7 +183,8 @@ nox {
              statsdialog.cpp \
              messageboxraised.cpp \
              statusbar.cpp \
-             trackerlogin.cpp
+             trackerlogin.cpp \
+             speedlimitdlg.cpp
 
   win32 {
     HEADERS += programupdater.h