diff --git a/openlp/core/lib/formattingtags.py b/openlp/core/lib/formattingtags.py
index 501106619..1984b08ba 100644
--- a/openlp/core/lib/formattingtags.py
+++ b/openlp/core/lib/formattingtags.py
@@ -29,7 +29,7 @@
 """
 Provide HTML Tag management and Formatting Tag access class
 """
-import pickle
+import json
 
 from openlp.core.lib import Settings, translate
 
@@ -66,7 +66,7 @@ class FormattingTags(object):
                     if isinstance(tag[element], unicode):
                         tag[element] = tag[element].encode('utf8')
         # Formatting Tags were also known as display tags.
-        Settings().setValue(u'displayTags/html_tags', pickle.dumps(tags) if tags else u'')
+        Settings().setValue(u'formattingTags/html_tags', json.dumps(tags) if tags else u'')
 
     @staticmethod
     def load_tags():
@@ -156,11 +156,10 @@ class FormattingTags(object):
             u'end html': u'', u'protected': True, u'temporary': False})
         FormattingTags.add_html_tags(base_tags)
         FormattingTags.add_html_tags(temporary_tags)
-        # FIXME: python3 - fix pickle.load() and pickle.dumps().
         # Formatting Tags were also known as display tags.
-        user_expands = Settings().value(u'displayTags/html_tags')
-        if user_expands:
-            user_tags = pickle.loads(user_expands)
+        user_expands_string = str(Settings().value(u'formattingTags/html_tags'))
+        if user_expands_string:
+            user_tags = json.loads(user_expands_string)
             for tag in user_tags:
                 for element in tag:
                     if isinstance(tag[element], str):
diff --git a/openlp/core/lib/imagemanager.py b/openlp/core/lib/imagemanager.py
index 412eddd1e..dc535a665 100644
--- a/openlp/core/lib/imagemanager.py
+++ b/openlp/core/lib/imagemanager.py
@@ -1,3 +1,4 @@
+
 # -*- coding: utf-8 -*-
 # vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
 
diff --git a/openlp/core/lib/mediamanageritem.py b/openlp/core/lib/mediamanageritem.py
index c3e1fa366..973d457bb 100644
--- a/openlp/core/lib/mediamanageritem.py
+++ b/openlp/core/lib/mediamanageritem.py
@@ -728,10 +728,14 @@ class MediaManagerItem(QtGui.QWidget):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/lib/plugin.py b/openlp/core/lib/plugin.py
index b4f851b24..a79ba850a 100644
--- a/openlp/core/lib/plugin.py
+++ b/openlp/core/lib/plugin.py
@@ -30,6 +30,7 @@
 Provide the generic plugin functionality for OpenLP plugins.
 """
 import logging
+import os
 
 from PyQt4 import QtCore
 
@@ -424,8 +425,11 @@ class Plugin(QtCore.QObject):
         """
         Adds the openlp to the class dynamically
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/lib/registry.py b/openlp/core/lib/registry.py
index 7e880f1f9..cee9e0329 100644
--- a/openlp/core/lib/registry.py
+++ b/openlp/core/lib/registry.py
@@ -103,9 +103,6 @@ class Registry(object):
         ``key``
             The service to be deleted.
         """
-        if self.running_under_test is False:
-            log.error(u'Invalid Method call for key %s' % key)
-            raise KeyError(u'Invalid Method call for key %s' % key)
         if key in self.service_list:
             del self.service_list[key]
 
diff --git a/openlp/core/lib/serviceitem.py b/openlp/core/lib/serviceitem.py
index b32e1aaf0..ee1a5c588 100644
--- a/openlp/core/lib/serviceitem.py
+++ b/openlp/core/lib/serviceitem.py
@@ -485,6 +485,12 @@ class ServiceItem(object):
         """
         return self.unique_identifier != other.unique_identifier
 
+    def __hash__(self):
+        """
+        Return the hash for the service item.
+        """
+        return self.unique_identifier
+
     def is_media(self):
         """
         Confirms if the ServiceItem is media
diff --git a/openlp/core/lib/settings.py b/openlp/core/lib/settings.py
index 5e73ffc1d..a20e3e1a8 100644
--- a/openlp/core/lib/settings.py
+++ b/openlp/core/lib/settings.py
@@ -115,7 +115,7 @@ class Settings(QtCore.QSettings):
         u'advanced/single click preview': False,
         u'advanced/x11 bypass wm': X11_BYPASS_DEFAULT,
         u'crashreport/last directory': u'',
-        u'displayTags/html_tags': u'',
+        u'formattingTags/html_tags': u'',
         u'core/audio repeat list': False,
         u'core/auto open': False,
         u'core/auto preview': False,
diff --git a/openlp/core/ui/firsttimeform.py b/openlp/core/ui/firsttimeform.py
index 5a4530256..4eb075c21 100644
--- a/openlp/core/ui/firsttimeform.py
+++ b/openlp/core/ui/firsttimeform.py
@@ -486,10 +486,14 @@ class FirstTimeForm(QtGui.QWizard, Ui_FirstTimeWizard):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index 7069cb9b7..eab89cb7d 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -38,6 +38,7 @@ Some of the code for this form is based on the examples at:
 from __future__ import division
 import cgi
 import logging
+import os
 import sys
 
 from PyQt4 import QtCore, QtGui, QtWebKit, QtOpenGL
@@ -494,11 +495,15 @@ class MainDisplay(Display):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
diff --git a/openlp/core/ui/mainwindow.py b/openlp/core/ui/mainwindow.py
index 4607c441f..c14a50d69 100644
--- a/openlp/core/ui/mainwindow.py
+++ b/openlp/core/ui/mainwindow.py
@@ -1064,6 +1064,9 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
         if self.live_controller.display:
             self.live_controller.display.close()
             self.live_controller.display = None
+        if os.name == u'nt':
+            # Needed for Windows to stop crashes on exit
+            Registry().remove(u'application')
 
     def service_changed(self, reset=False, serviceName=None):
         """
@@ -1374,10 +1377,14 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/ui/media/mediaplayer.py b/openlp/core/ui/media/mediaplayer.py
index c1f060f60..5d9e3663f 100644
--- a/openlp/core/ui/media/mediaplayer.py
+++ b/openlp/core/ui/media/mediaplayer.py
@@ -29,6 +29,8 @@
 """
 The :mod:`~openlp.core.ui.media.mediaplayer` module contains the MediaPlayer class.
 """
+import os
+
 from openlp.core.lib import Registry
 from openlp.core.ui.media import MediaState
 
@@ -153,10 +155,14 @@ class MediaPlayer(object):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
\ No newline at end of file
diff --git a/openlp/core/ui/pluginform.py b/openlp/core/ui/pluginform.py
index dd497bd68..4f4824fb7 100644
--- a/openlp/core/ui/pluginform.py
+++ b/openlp/core/ui/pluginform.py
@@ -30,6 +30,7 @@
 The actual plugin view form
 """
 import logging
+import os
 
 from PyQt4 import QtGui
 
@@ -166,10 +167,14 @@ class PluginForm(QtGui.QDialog, Ui_PluginViewDialog):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/ui/servicemanager.py b/openlp/core/ui/servicemanager.py
index 67d7ee5de..834652f3b 100644
--- a/openlp/core/ui/servicemanager.py
+++ b/openlp/core/ui/servicemanager.py
@@ -1588,10 +1588,14 @@ class ServiceManager(QtGui.QWidget, ServiceManagerDialog):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/ui/thememanager.py b/openlp/core/ui/thememanager.py
index 4ab125039..dcaad74d4 100644
--- a/openlp/core/ui/thememanager.py
+++ b/openlp/core/ui/thememanager.py
@@ -836,10 +836,14 @@ class ThemeManager(QtGui.QWidget):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/core/ui/wizard.py b/openlp/core/ui/wizard.py
index 0b142b459..ca89808ff 100644
--- a/openlp/core/ui/wizard.py
+++ b/openlp/core/ui/wizard.py
@@ -320,10 +320,14 @@ class OpenLPWizard(QtGui.QWizard):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/plugins/bibles/forms/editbibleform.py b/openlp/plugins/bibles/forms/editbibleform.py
index b05fb68fb..4e0a5a7c0 100644
--- a/openlp/plugins/bibles/forms/editbibleform.py
+++ b/openlp/plugins/bibles/forms/editbibleform.py
@@ -28,6 +28,7 @@
 ###############################################################################
 
 import logging
+import os
 import re
 
 from PyQt4 import QtGui
@@ -191,10 +192,14 @@ class EditBibleForm(QtGui.QDialog, Ui_EditBibleDialog):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/plugins/bibles/lib/db.py b/openlp/plugins/bibles/lib/db.py
index 837dbec38..69ec72ee5 100644
--- a/openlp/plugins/bibles/lib/db.py
+++ b/openlp/plugins/bibles/lib/db.py
@@ -544,11 +544,15 @@ class BibleDB(QtCore.QObject, Manager):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
diff --git a/openlp/plugins/bibles/lib/http.py b/openlp/plugins/bibles/lib/http.py
index efab9106b..de48b2617 100644
--- a/openlp/plugins/bibles/lib/http.py
+++ b/openlp/plugins/bibles/lib/http.py
@@ -29,6 +29,7 @@
 """
 The :mod:`http` module enables OpenLP to retrieve scripture from bible websites.
 """
+import os
 import logging
 import re
 import socket
@@ -301,11 +302,15 @@ class BGExtract(object):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
@@ -362,8 +367,8 @@ class BSExtract(object):
             The version of the Bible like NIV for New International Version
         """
         log.debug(u'BSExtract.get_books_from_http("%s")', version)
-        urlversion = urllib.quote(version.encode("utf-8"))
-        chapter_url = u'http://m.bibleserver.com/overlay/selectBook?translation=%s' % (urlversion)
+        url_version = urllib.quote(version.encode("utf-8"))
+        chapter_url = u'http://m.bibleserver.com/overlay/selectBook?translation=%s' % (url_version)
         soup = get_soup_for_bible_ref(chapter_url)
         if not soup:
             return None
@@ -377,11 +382,15 @@ class BSExtract(object):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
@@ -477,11 +486,15 @@ class CWExtract(object):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
@@ -598,9 +611,8 @@ class HTTPBible(BibleDB):
                 if show_error:
                     critical_error_message_box(
                         translate('BiblesPlugin', 'No Book Found'),
-                        translate('BiblesPlugin', 'No matching '
-                        'book could be found in this Bible. Check that you '
-                        'have spelled the name of the book correctly.'))
+                        translate('BiblesPlugin', 'No matching book could be found in this Bible. Check that you have '
+                        'spelled the name of the book correctly.'))
                 return []
             book = db_book.name
             if BibleDB.get_verse_count(self, book_id, reference[1]) == 0:
@@ -667,14 +679,19 @@ class HTTPBible(BibleDB):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
 
+
 def get_soup_for_bible_ref(reference_url, header=None, pre_parse_regex=None, pre_parse_substitute=None):
     """
     Gets a webpage and returns a parsed and optionally cleaned soup or None.
@@ -724,13 +741,10 @@ def send_error_message(error_type):
     if error_type == u'download':
         critical_error_message_box(
             translate('BiblesPlugin.HTTPBible', 'Download Error'),
-            translate('BiblesPlugin.HTTPBible', 'There was a '
-            'problem downloading your verse selection. Please check your '
-            'Internet connection, and if this error continues to occur '
-            'please consider reporting a bug.'))
+            translate('BiblesPlugin.HTTPBible', 'There was a problem downloading your verse selection. Please check '
+                'your Internet connection, and if this error continues to occur please consider reporting a bug.'))
     elif error_type == u'parse':
         critical_error_message_box(
             translate('BiblesPlugin.HTTPBible', 'Parse Error'),
-            translate('BiblesPlugin.HTTPBible', 'There was a '
-            'problem extracting your verse selection. If this error continues '
-            'to occur please consider reporting a bug.'))
+            translate('BiblesPlugin.HTTPBible', 'There was a problem extracting your verse selection. If this error '
+                'continues to occur please consider reporting a bug.'))
diff --git a/openlp/plugins/custom/forms/editcustomform.py b/openlp/plugins/custom/forms/editcustomform.py
index 580fbde07..1009ea8d3 100644
--- a/openlp/plugins/custom/forms/editcustomform.py
+++ b/openlp/plugins/custom/forms/editcustomform.py
@@ -100,8 +100,7 @@ class EditCustomForm(QtGui.QDialog, Ui_CustomEditDialog):
             self.credit_edit.setText(self.custom_slide.credits)
             custom_XML = CustomXMLParser(self.custom_slide.text)
             slide_list = custom_XML.get_verses()
-            for slide in slide_list:
-                self.slide_list_view.addItem(slide[1])
+            self.slide_list_view.addItems([slide[1] for slide in slide_list])
             theme = self.custom_slide.theme_name
             find_and_set_in_combo_box(self.theme_combo_box, theme)
         self.title_edit.setFocus()
diff --git a/openlp/plugins/custom/lib/db.py b/openlp/plugins/custom/lib/db.py
index 253ca5432..2f6eb5d6d 100644
--- a/openlp/plugins/custom/lib/db.py
+++ b/openlp/plugins/custom/lib/db.py
@@ -41,14 +41,19 @@ class CustomSlide(BaseModel):
     """
     CustomSlide model
     """
-    # By default sort the customs by its title considering language specific
-    # characters.
+    # By default sort the customs by its title considering language specific characters.
     def __lt__(self, other):
         return get_locale_key(self.title) < get_locale_key(other.title)
 
     def __eq__(self, other):
         return get_locale_key(self.title) == get_locale_key(other.title)
 
+    def __hash__(self):
+        """
+        Return the hash for a custom slide.
+        """
+        return self.id
+
 
 def init_schema(url):
     """
diff --git a/openlp/plugins/presentations/lib/pptviewlib/ppttest.py b/openlp/plugins/presentations/lib/pptviewlib/ppttest.py
index c8573c807..f07468bb8 100644
--- a/openlp/plugins/presentations/lib/pptviewlib/ppttest.py
+++ b/openlp/plugins/presentations/lib/pptviewlib/ppttest.py
@@ -174,13 +174,13 @@ class PPTViewer(QtGui.QWidget):
             int(self.widthEdit.text()), int(self.heightEdit.text()))
         filename = str(self.pptEdit.text().replace(u'/', u'\\'))
         folder = str(self.folderEdit.text().replace(u'/', u'\\'))
-        print filename, folder
+        print(filename, folder)
         self.pptid = self.pptdll.OpenPPT(filename, None, rect, folder)
-        print u'id: ' + unicode(self.pptid)
+        print(u'id: ' + unicode(self.pptid))
         if oldid >= 0:
             self.pptdll.ClosePPT(oldid);
         slides = self.pptdll.GetSlideCount(self.pptid)
-        print u'slidecount: ' + unicode(slides)
+        print(u'slidecount: ' + unicode(slides))
         self.total.setNum(self.pptdll.GetSlideCount(self.pptid))
         self.updateCurrSlide()
 
@@ -188,14 +188,14 @@ class PPTViewer(QtGui.QWidget):
         if self.pptid < 0:
             return
         slide = unicode(self.pptdll.GetCurrentSlide(self.pptid))
-        print u'currslide: ' + slide
+        print(u'currslide: ' + slide)
         self.slideEdit.setText(slide)
         app.processEvents()
 
     def gotoClick(self):
         if self.pptid < 0:
             return
-        print self.slideEdit.text()
+        print(self.slideEdit.text())
         self.pptdll.GotoSlide(self.pptid, int(self.slideEdit.text()))
         self.updateCurrSlide()
         app.processEvents()
@@ -207,7 +207,7 @@ class PPTViewer(QtGui.QWidget):
 if __name__ == '__main__':
     pptdll = cdll.LoadLibrary(r'pptviewlib.dll')
     pptdll.SetDebug(1)
-    print u'Begin...'
+    print(u'Begin...')
     app = QtGui.QApplication(sys.argv)
     window = PPTViewer()
     window.pptdll = pptdll
diff --git a/openlp/plugins/songs/forms/duplicatesongremovalform.py b/openlp/plugins/songs/forms/duplicatesongremovalform.py
index d612a5627..4427bbb31 100644
--- a/openlp/plugins/songs/forms/duplicatesongremovalform.py
+++ b/openlp/plugins/songs/forms/duplicatesongremovalform.py
@@ -349,10 +349,14 @@ class DuplicateSongRemovalForm(OpenLPWizard):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
\ No newline at end of file
diff --git a/openlp/plugins/songs/forms/songmaintenanceform.py b/openlp/plugins/songs/forms/songmaintenanceform.py
index 9f003b2a0..2eb895a9a 100644
--- a/openlp/plugins/songs/forms/songmaintenanceform.py
+++ b/openlp/plugins/songs/forms/songmaintenanceform.py
@@ -27,6 +27,7 @@
 # Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
 ###############################################################################
 import logging
+import os
 
 from PyQt4 import QtGui, QtCore
 from sqlalchemy.sql import and_
@@ -525,10 +526,14 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
 
     def _get_application(self):
         """
-        Adds the application to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/plugins/songs/lib/openlyricsexport.py b/openlp/plugins/songs/lib/openlyricsexport.py
index f9ac6ebb3..35a9a29ec 100644
--- a/openlp/plugins/songs/lib/openlyricsexport.py
+++ b/openlp/plugins/songs/lib/openlyricsexport.py
@@ -84,10 +84,14 @@ class OpenLyricsExport(object):
 
     def _get_application(self):
         """
-        Adds the openlp to the class dynamically
+        Adds the openlp to the class dynamically.
+        Windows needs to access the application in a dynamic manner.
         """
-        if not hasattr(self, u'_application'):
-            self._application = Registry().get(u'application')
-        return self._application
+        if os.name == u'nt':
+            return Registry().get(u'application')
+        else:
+            if not hasattr(self, u'_application'):
+                self._application = Registry().get(u'application')
+            return self._application
 
     application = property(_get_application)
diff --git a/openlp/plugins/songs/lib/test/test_opensongimport.py b/openlp/plugins/songs/lib/test/test_opensongimport.py
deleted file mode 100644
index 8f09ea875..000000000
--- a/openlp/plugins/songs/lib/test/test_opensongimport.py
+++ /dev/null
@@ -1,131 +0,0 @@
-# -*- coding: utf-8 -*-
-# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
-
-###############################################################################
-# OpenLP - Open Source Lyrics Projection                                      #
-# --------------------------------------------------------------------------- #
-# Copyright (c) 2008-2013 Raoul Snyman                                        #
-# Portions copyright (c) 2008-2013 Tim Bentley, Gerald Britton, Jonathan      #
-# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub,      #
-# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer.   #
-# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru,          #
-# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith,             #
-# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock,              #
-# Frode Woldsund, Martin Zibricky, Patrick Zimmermann                         #
-# --------------------------------------------------------------------------- #
-# 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; version 2 of the License.                              #
-#                                                                             #
-# 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., 59  #
-# Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
-###############################################################################
-
-from openlp.plugins.songs.lib.opensongimport import OpenSongImport
-from openlp.core.lib.db import Manager
-from openlp.plugins.songs.lib.db import init_schema
-
-import logging
-LOG_FILENAME = 'test.log'
-logging.basicConfig(filename=LOG_FILENAME,level=logging.INFO)
-
-# Stubs to replace the UI functions for raw testing
-class wizard_stub:
-    def __init__(self):
-        self.progressBar=progbar_stub()
-    def incrementProgressBar(self, str):
-        pass
-class progbar_stub:
-    def __init__(self):
-        pass
-    def setMaximum(self, arg):
-        pass
-
-def test():
-    manager = Manager(u'songs', init_schema)
-    o = OpenSongImport(manager, filenames=[u'test.opensong'])
-    o.import_wizard = wizard_stub()
-    o.commit = False
-    o.do_import()
-    o.print_song()
-    assert o.copyright == u'2010 Martin Thompson'
-    assert o.authors == [u'MartiÑ Thómpson', u'Martin2 Thómpson']
-    assert o.title == u'Martins Test'
-    assert o.alternate_title == u''
-    assert o.song_number == u'1'
-    assert [u'C1', u'Chorus 1'] in o.verses
-    assert [u'C2', u'Chorus 2'] in o.verses
-    assert not [u'C3', u'Chorus 3'] in o.verses
-    assert [u'B1', u'Bridge 1\nBridge 1 line 2'] in o.verses
-    assert [u'V1', u'v1 Line 1\nV1 Line 2'] in o.verses
-    assert [u'V2', u'v2 Line 1\nV2 Line 2'] in o.verses
-    assert [u'V3A', u'V3 Line 1\nV3 Line 2'] in o.verses
-    assert [u'RAP1', u'Rap 1 Line 1\nRap 1 Line 2'] in o.verses
-    assert [u'RAP2', u'Rap 2 Line 1\nRap 2 Line 2'] in o.verses
-    assert [u'RAP3', u'Rap 3 Line 1\nRap 3 Line 2'] in o.verses
-    assert [u'X1', u'Unreferenced verse line 1'] in o.verses
-    assert o.verse_order_list == [u'V1', u'C1', u'V2', u'C2', u'V3A', u'B1', u'V1', u'T1', u'RAP1', u'RAP2', u'RAP3']
-    assert o.ccli_number == u'Blah'
-    assert o.topics == [u'TestTheme', u'TestAltTheme']
-
-    o.filenames = [u'test.opensong.zip']
-    o.set_defaults()
-    o.do_import()
-    o.print_song()
-    assert o.copyright == u'2010 Martin Thompson'
-    assert o.authors == [u'MartiÑ Thómpson']
-    assert o.title == u'Martins Test'
-    assert o.alternate_title == u''
-    assert o.song_number == u'1'
-    assert [u'B1', u'Bridge 1\nBridge 1 line 2'] in o.verses
-    assert [u'C1', u'Chorus 1'] in o.verses
-    assert [u'C2', u'Chorus 2'] in o.verses
-    assert not [u'C3', u'Chorus 3'] in o.verses
-    assert [u'V1', u'v1 Line 1\nV1 Line 2'] in o.verses
-    assert [u'V2', u'v2 Line 1\nV2 Line 2'] in o.verses
-    print o.verse_order_list
-    assert o.verse_order_list == [u'V1', u'C1', u'V2', u'C2', u'V3', u'B1', u'V1']
-
-    o.filenames = [u'test2.opensong']
-    o.set_defaults()
-    o.do_import()
-    o.print_song()
-    assert o.copyright == u'2010 Martin Thompson'
-    assert o.authors == [u'Martin Thompson']
-    assert o.title == u'Martins 2nd Test'
-    assert o.alternate_title == u''
-    assert o.song_number == u'2'
-    print o.verses
-    assert [u'B1', u'Bridge 1\nBridge 1 line 2'] in o.verses
-    assert [u'C1', u'Chorus 1'] in o.verses
-    assert [u'C2', u'Chorus 2'] in o.verses
-    assert not [u'C3', u'Chorus 3'] in o.verses
-    assert [u'V1', u'v1 Line 1\nV1 Line 2'] in o.verses
-    assert [u'V2', u'v2 Line 1\nV2 Line 2'] in o.verses
-    print o.verse_order_list
-    assert o.verse_order_list == [u'V1', u'V2', u'B1', u'C1', u'C2']
-
-    o.filenames = [u'test3.opensong']
-    o.set_defaults()
-    o.do_import()
-    o.print_song()
-    assert o.copyright == u'2010'
-    assert o.authors == [u'Martin Thompson']
-    assert o.title == u'Test single verse'
-    assert o.alternate_title == u''
-    assert o.ccli_number == u'123456'
-    assert o.verse_order_list == [u'V1']
-    assert o.topics == [u'Worship: Declaration']
-    print o.verses[0]
-    assert [u'V1', u'Line 1\nLine 2'] in o.verses
-
-    print "Tests passed"
-
-if __name__ == "__main__":
-    test()
diff --git a/tests/functional/openlp_core_lib/test_formattingtags.py b/tests/functional/openlp_core_lib/test_formattingtags.py
index 721032033..326dde5c8 100644
--- a/tests/functional/openlp_core_lib/test_formattingtags.py
+++ b/tests/functional/openlp_core_lib/test_formattingtags.py
@@ -33,11 +33,11 @@ class TestFormattingTags(TestCase):
         """
         with patch(u'openlp.core.lib.translate') as mocked_translate, \
                 patch(u'openlp.core.lib.settings') as mocked_settings, \
-                patch(u'openlp.core.lib.formattingtags.pickle') as mocked_pickle:
+                patch(u'openlp.core.lib.formattingtags.json') as mocked_json:
             # GIVEN: Our mocked modules and functions.
             mocked_translate.side_effect = lambda module, string_to_translate, comment: string_to_translate
             mocked_settings.value.return_value = u''
-            mocked_pickle.load.return_value = []
+            mocked_json.load.return_value = []
 
             # WHEN: Get the display tags.
             FormattingTags.load_tags()
@@ -54,11 +54,11 @@ class TestFormattingTags(TestCase):
         """
         with patch(u'openlp.core.lib.translate') as mocked_translate, \
                 patch(u'openlp.core.lib.settings') as mocked_settings, \
-                patch(u'openlp.core.lib.formattingtags.pickle') as mocked_pickle:
+                patch(u'openlp.core.lib.formattingtags.json') as mocked_json:
             # GIVEN: Our mocked modules and functions.
             mocked_translate.side_effect = lambda module, string_to_translate: string_to_translate
             mocked_settings.value.return_value = u''
-            mocked_pickle.loads.side_effect = [[], [TAG]]
+            mocked_json.loads.side_effect = [[], [TAG]]
 
             # WHEN: Get the display tags.
             FormattingTags.load_tags()