diff --git a/openlp/core/__init__.py b/openlp/core/__init__.py
index 4ab94a250..32ef5c5a3 100644
--- a/openlp/core/__init__.py
+++ b/openlp/core/__init__.py
@@ -36,14 +36,14 @@ logging and a plugin framework are contained within the openlp.core module.
 
 import os
 import sys
-import platform
 import logging
 from optparse import OptionParser
 from traceback import format_exception
 
 from PyQt4 import QtCore, QtGui
 
-from openlp.core.common import Registry, OpenLPMixin, AppLocation, Settings, UiStrings, check_directory_exists
+from openlp.core.common import Registry, OpenLPMixin, AppLocation, Settings, UiStrings, check_directory_exists, \
+    is_macosx, is_win
 from openlp.core.lib import ScreenList
 from openlp.core.resources import qInitResources
 from openlp.core.ui.mainwindow import MainWindow
@@ -126,7 +126,7 @@ class OpenLP(OpenLPMixin, QtGui.QApplication):
             alternate_rows_repair_stylesheet = \
                 'QTableWidget, QListWidget, QTreeWidget {alternate-background-color: ' + base_color.name() + ';}\n'
             application_stylesheet += alternate_rows_repair_stylesheet
-        if os.name == 'nt':
+        if is_win():
             application_stylesheet += NT_REPAIR_STYLESHEET
         if application_stylesheet:
             self.setStyleSheet(application_stylesheet)
@@ -275,7 +275,7 @@ def main(args=None):
     # Throw the rest of the arguments at Qt, just in case.
     qt_args.extend(args)
     # Bug #1018855: Set the WM_CLASS property in X11
-    if platform.system() not in ['Windows', 'Darwin']:
+    if not is_win() and not is_macosx():
         qt_args.append('OpenLP')
     # Initialise the resources
     qInitResources()
diff --git a/openlp/core/common/__init__.py b/openlp/core/common/__init__.py
index 22207dec4..0776547ae 100644
--- a/openlp/core/common/__init__.py
+++ b/openlp/core/common/__init__.py
@@ -127,6 +127,33 @@ def de_hump(name):
     sub_name = FIRST_CAMEL_REGEX.sub(r'\1_\2', name)
     return SECOND_CAMEL_REGEX.sub(r'\1_\2', sub_name).lower()
 
+
+def is_win():
+    """
+    Returns true if running on a system with a nt kernel e.g. Windows, Wine
+
+    :return: True if system is running a nt kernel false otherwise
+    """
+    return os.name.startswith('nt')
+
+
+def is_macosx():
+    """
+    Returns true if running on a system with a darwin kernel e.g. Mac OS X
+
+    :return: True if system is running a darwin kernel false otherwise
+    """
+    return sys.platform.startswith('darwin')
+
+
+def is_linux():
+    """
+    Returns true if running on a system with a linux kernel e.g. Ubuntu, Debian, etc
+
+    :return: True if system is running a linux kernel false otherwise
+    """
+    return sys.platform.startswith('linux')
+
 from .openlpmixin import OpenLPMixin
 from .registry import Registry
 from .registrymixin import RegistryMixin
diff --git a/openlp/core/common/applocation.py b/openlp/core/common/applocation.py
index 073d3c7f7..89f637e69 100644
--- a/openlp/core/common/applocation.py
+++ b/openlp/core/common/applocation.py
@@ -33,10 +33,10 @@ import logging
 import os
 import sys
 
-from openlp.core.common import Settings
+from openlp.core.common import Settings, is_win, is_macosx
 
 
-if sys.platform != 'win32' and sys.platform != 'darwin':
+if not is_win() and not is_macosx():
     try:
         from xdg import BaseDirectory
         XDG_BASE_AVAILABLE = True
@@ -145,13 +145,13 @@ def _get_os_dir_path(dir_type):
         directory = os.path.abspath(os.path.join(os.path.dirname(openlp.__file__), '..', 'resources'))
         if os.path.exists(directory):
             return directory
-    if sys.platform == 'win32':
+    if is_win():
         if dir_type == AppLocation.DataDir:
             return os.path.join(str(os.getenv('APPDATA')), 'openlp', 'data')
         elif dir_type == AppLocation.LanguageDir:
             return os.path.dirname(openlp.__file__)
         return os.path.join(str(os.getenv('APPDATA')), 'openlp')
-    elif sys.platform == 'darwin':
+    elif is_macosx():
         if dir_type == AppLocation.DataDir:
             return os.path.join(str(os.getenv('HOME')), 'Library', 'Application Support', 'openlp', 'Data')
         elif dir_type == AppLocation.LanguageDir:
diff --git a/openlp/core/common/registryproperties.py b/openlp/core/common/registryproperties.py
index 791fc33f7..e2cfffa09 100644
--- a/openlp/core/common/registryproperties.py
+++ b/openlp/core/common/registryproperties.py
@@ -29,9 +29,7 @@
 """
 Provide Registry values for adding to classes
 """
-import os
-
-from openlp.core.common import Registry
+from openlp.core.common import Registry, is_win
 
 
 class RegistryProperties(object):
@@ -45,7 +43,7 @@ class RegistryProperties(object):
         Adds the openlp to the class dynamically.
         Windows needs to access the application in a dynamic manner.
         """
-        if os.name == 'nt':
+        if is_win():
             return Registry().get('application')
         else:
             if not hasattr(self, '_application') or not self._application:
diff --git a/openlp/core/common/settings.py b/openlp/core/common/settings.py
index 634bc5ced..f7202b590 100644
--- a/openlp/core/common/settings.py
+++ b/openlp/core/common/settings.py
@@ -36,7 +36,7 @@ import sys
 
 from PyQt4 import QtCore, QtGui
 
-from openlp.core.common import ThemeLevel, SlideLimits, UiStrings
+from openlp.core.common import ThemeLevel, SlideLimits, UiStrings, is_win, is_linux
 
 
 log = logging.getLogger(__name__)
@@ -44,7 +44,7 @@ log = logging.getLogger(__name__)
 
 # Fix for bug #1014422.
 X11_BYPASS_DEFAULT = True
-if sys.platform.startswith('linux'):
+if is_linux():
     # Default to False on Gnome.
     X11_BYPASS_DEFAULT = bool(not os.environ.get('GNOME_DESKTOP_SESSION_ID'))
     # Default to False on Xfce.
@@ -86,7 +86,7 @@ class Settings(QtCore.QSettings):
     """
     __default_settings__ = {
         'advanced/add page break': False,
-        'advanced/alternate rows': not sys.platform.startswith('win'),
+        'advanced/alternate rows': not is_win(),
         'advanced/current media plugin': -1,
         'advanced/data path': '',
         'advanced/default color': '#ffffff',
diff --git a/openlp/core/ui/exceptionform.py b/openlp/core/ui/exceptionform.py
index e0228a43b..65b858b75 100644
--- a/openlp/core/ui/exceptionform.py
+++ b/openlp/core/ui/exceptionform.py
@@ -38,7 +38,7 @@ import bs4
 import sqlalchemy
 from lxml import etree
 
-from openlp.core.common import RegistryProperties
+from openlp.core.common import RegistryProperties, is_linux
 
 from PyQt4 import Qt, QtCore, QtGui, QtWebKit
 
@@ -137,7 +137,7 @@ class ExceptionForm(QtGui.QDialog, Ui_ExceptionDialog, RegistryProperties):
             'pyICU: %s\n' % ICU_VERSION + \
             'pyUNO bridge: %s\n' % self._pyuno_import() + \
             'VLC: %s\n' % VLC_VERSION
-        if platform.system() == 'Linux':
+        if is_linux():
             if os.environ.get('KDE_FULL_SESSION') == 'true':
                 system += 'Desktop: KDE SC\n'
             elif os.environ.get('GNOME_DESKTOP_SESSION_ID'):
diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index 5c905c972..f9f00a235 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -43,7 +43,7 @@ import sys
 from PyQt4 import QtCore, QtGui, QtWebKit, QtOpenGL
 from PyQt4.phonon import Phonon
 
-from openlp.core.common import Registry, RegistryProperties, OpenLPMixin, Settings, translate
+from openlp.core.common import Registry, RegistryProperties, OpenLPMixin, Settings, translate, is_macosx
 from openlp.core.lib import ServiceItem, ImageSource, build_html, expand_tags, image_to_byte
 from openlp.core.lib.theme import BackgroundType
 
@@ -74,7 +74,7 @@ class Display(QtGui.QGraphicsView):
         # OpenGL. Only white blank screen is shown on the 2nd monitor all the
         # time. We need to investigate more how to use OpenGL properly on Mac OS
         # X.
-        if sys.platform != 'darwin':
+        if not is_macosx():
             self.setViewport(QtOpenGL.QGLWidget())
 
     def setup(self):
@@ -143,7 +143,7 @@ class MainDisplay(OpenLPMixin, Display, RegistryProperties):
         # on Mac OS X. For next OpenLP version we should test it on other
         # platforms. For OpenLP 2.0 keep it only for OS X to not cause any
         # regressions on other platforms.
-        if sys.platform == 'darwin':
+        if is_macosx():
             window_flags = QtCore.Qt.FramelessWindowHint | QtCore.Qt.Window
             # For primary screen ensure it stays above the OS X dock
             # and menu bar
diff --git a/openlp/core/ui/mainwindow.py b/openlp/core/ui/mainwindow.py
index 6894293ce..1a6b688c7 100644
--- a/openlp/core/ui/mainwindow.py
+++ b/openlp/core/ui/mainwindow.py
@@ -41,7 +41,8 @@ from datetime import datetime
 
 from PyQt4 import QtCore, QtGui
 
-from openlp.core.common import Registry, RegistryProperties, AppLocation, Settings, check_directory_exists, translate
+from openlp.core.common import Registry, RegistryProperties, AppLocation, Settings, check_directory_exists, translate, \
+    is_win, is_macosx
 from openlp.core.lib import Renderer, OpenLPDockWidget, PluginManager, ImageManager, PluginStatus, ScreenList, \
     build_icon
 from openlp.core.lib.ui import UiStrings, create_action
@@ -289,7 +290,7 @@ class Ui_MainWindow(object):
                                         triggers=self.on_about_item_clicked)
         # Give QT Extra Hint that this is an About Menu Item
         self.about_item.setMenuRole(QtGui.QAction.AboutRole)
-        if os.name == 'nt':
+        if is_win():
             self.local_help_file = os.path.join(AppLocation.get_directory(AppLocation.AppDir), 'OpenLP.chm')
             self.offline_help_item = create_action(main_window, 'offlineHelpItem',
                                                    icon=':/system/system_help_contents.png',
@@ -323,7 +324,7 @@ class Ui_MainWindow(object):
         # Qt on OS X looks for keywords in the menu items title to determine which menu items get added to the main
         # menu. If we are running on Mac OS X the menu items whose title contains those keywords but don't belong in the
         # main menu need to be marked as such with QAction.NoRole.
-        if sys.platform == 'darwin':
+        if is_macosx():
             self.settings_shortcuts_item.setMenuRole(QtGui.QAction.NoRole)
             self.formatting_tag_item.setMenuRole(QtGui.QAction.NoRole)
         add_actions(self.settings_menu, (self.settings_plugin_list_item, self.settings_language_menu.menuAction(),
@@ -332,7 +333,7 @@ class Ui_MainWindow(object):
         add_actions(self.tools_menu, (self.tools_open_data_folder, None))
         add_actions(self.tools_menu, (self.tools_first_time_wizard, None))
         add_actions(self.tools_menu, [self.update_theme_images])
-        if os.name == 'nt':
+        if is_win():
             add_actions(self.help_menu, (self.offline_help_item, self.on_line_help_item, None, self.web_site_item,
                         self.about_item))
         else:
@@ -426,7 +427,7 @@ class Ui_MainWindow(object):
         self.settings_plugin_list_item.setStatusTip(translate('OpenLP.MainWindow', 'List the Plugins'))
         self.about_item.setText(translate('OpenLP.MainWindow', '&About'))
         self.about_item.setStatusTip(translate('OpenLP.MainWindow', 'More information about OpenLP'))
-        if os.name == 'nt':
+        if is_win():
             self.offline_help_item.setText(translate('OpenLP.MainWindow', '&User Guide'))
         self.on_line_help_item.setText(translate('OpenLP.MainWindow', '&Online Help'))
         self.search_shortcut_action.setText(UiStrings().Search)
@@ -1073,7 +1074,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow, RegistryProperties):
         if self.live_controller.display:
             self.live_controller.display.close()
             self.live_controller.display = None
-        if os.name == 'nt':
+        if is_win():
             # Needed for Windows to stop crashes on exit
             Registry().remove('application')
 
diff --git a/openlp/core/ui/media/vlcplayer.py b/openlp/core/ui/media/vlcplayer.py
index d02526b0e..4394126c0 100644
--- a/openlp/core/ui/media/vlcplayer.py
+++ b/openlp/core/ui/media/vlcplayer.py
@@ -38,7 +38,7 @@ import threading
 
 from PyQt4 import QtGui
 
-from openlp.core.common import Settings
+from openlp.core.common import Settings, is_win, is_macosx
 from openlp.core.lib import translate
 from openlp.core.ui.media import MediaState
 from openlp.core.ui.media.mediaplayer import MediaPlayer
@@ -52,7 +52,7 @@ try:
 except (ImportError, NameError, NotImplementedError):
     pass
 except OSError as e:
-    if sys.platform.startswith('win'):
+    if is_win():
         if not isinstance(e, WindowsError) and e.winerror != 126:
             raise
     else:
@@ -139,9 +139,9 @@ class VlcPlayer(MediaPlayer):
         # You have to give the id of the QFrame (or similar object)
         # to vlc, different platforms have different functions for this.
         win_id = int(display.vlc_widget.winId())
-        if sys.platform == "win32":
+        if is_win():
             display.vlc_media_player.set_hwnd(win_id)
-        elif sys.platform == "darwin":
+        elif is_macosx():
             # We have to use 'set_nsobject' since Qt4 on OSX uses Cocoa
             # framework and not the old Carbon.
             display.vlc_media_player.set_nsobject(win_id)
diff --git a/openlp/core/utils/__init__.py b/openlp/core/utils/__init__.py
index 9b024eb84..bd72db1ac 100644
--- a/openlp/core/utils/__init__.py
+++ b/openlp/core/utils/__init__.py
@@ -44,10 +44,10 @@ from random import randint
 
 from PyQt4 import QtGui, QtCore
 
-from openlp.core.common import Registry, AppLocation, Settings
+from openlp.core.common import Registry, AppLocation, Settings, is_win, is_macosx
 
 
-if sys.platform != 'win32' and sys.platform != 'darwin':
+if not is_win() and not is_macosx():
     try:
         from xdg import BaseDirectory
         XDG_BASE_AVAILABLE = True
diff --git a/openlp/core/utils/languagemanager.py b/openlp/core/utils/languagemanager.py
index dd048e04c..3c741e58f 100644
--- a/openlp/core/utils/languagemanager.py
+++ b/openlp/core/utils/languagemanager.py
@@ -35,7 +35,7 @@ import sys
 
 from PyQt4 import QtCore, QtGui
 
-from openlp.core.common import AppLocation, Settings, translate
+from openlp.core.common import AppLocation, Settings, translate, is_win, is_macosx
 
 log = logging.getLogger(__name__)
 
@@ -60,7 +60,7 @@ class LanguageManager(object):
         app_translator = QtCore.QTranslator()
         app_translator.load(language, lang_path)
         # A translator for buttons and other default strings provided by Qt.
-        if sys.platform != 'win32' and sys.platform != 'darwin':
+        if not is_win() and not is_macosx():
             lang_path = QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.TranslationsPath)
         default_translator = QtCore.QTranslator()
         default_translator.load('qt_%s' % language, lang_path)
diff --git a/openlp/plugins/presentations/lib/impresscontroller.py b/openlp/plugins/presentations/lib/impresscontroller.py
index 1d5e111c9..d032b9161 100644
--- a/openlp/plugins/presentations/lib/impresscontroller.py
+++ b/openlp/plugins/presentations/lib/impresscontroller.py
@@ -42,7 +42,9 @@ import logging
 import os
 import time
 
-if os.name == 'nt':
+from openlp.core.common import is_win
+
+if is_win():
     from win32com.client import Dispatch
     import pywintypes
     # Declare an empty exception to match the exception imported from UNO
@@ -93,7 +95,7 @@ class ImpressController(PresentationController):
         Impress is able to run on this machine.
         """
         log.debug('check_available')
-        if os.name == 'nt':
+        if is_win():
             return self.get_com_servicemanager() is not None
         else:
             return uno_available
@@ -104,7 +106,7 @@ class ImpressController(PresentationController):
         UNO interface when required.
         """
         log.debug('start process Openoffice')
-        if os.name == 'nt':
+        if is_win():
             self.manager = self.get_com_servicemanager()
             self.manager._FlagAsMethod('Bridge_GetStruct')
             self.manager._FlagAsMethod('Bridge_GetValueObject')
@@ -175,7 +177,7 @@ class ImpressController(PresentationController):
             self.docs[0].close_presentation()
         desktop = None
         try:
-            if os.name != 'nt':
+            if not is_win():
                 desktop = self.get_uno_desktop()
             else:
                 desktop = self.get_com_desktop()
@@ -223,7 +225,7 @@ class ImpressDocument(PresentationDocument):
         is available the presentation is loaded and started.
         """
         log.debug('Load Presentation OpenOffice')
-        if os.name == 'nt':
+        if is_win():
             desktop = self.controller.get_com_desktop()
             if desktop is None:
                 self.controller.start_process()
@@ -236,7 +238,7 @@ class ImpressDocument(PresentationDocument):
             return False
         self.desktop = desktop
         properties = []
-        if os.name != 'nt':
+        if not is_win():
             # Recent versions of Impress on Windows won't start the presentation if it starts as minimized. It seems OK
             # on Linux though.
             properties.append(self.create_property('Minimized', True))
@@ -246,7 +248,7 @@ class ImpressDocument(PresentationDocument):
         except:
             log.warning('Failed to load presentation %s' % url)
             return False
-        if os.name == 'nt':
+        if is_win():
             # As we can't start minimized the Impress window gets in the way.
             # Either window.setPosSize(0, 0, 200, 400, 12) or .setVisible(False)
             window = self.document.getCurrentController().getFrame().getContainerWindow()
@@ -264,7 +266,7 @@ class ImpressDocument(PresentationDocument):
         log.debug('create thumbnails OpenOffice')
         if self.check_thumbnails():
             return
-        if os.name == 'nt':
+        if is_win():
             thumb_dir_url = 'file:///' + self.get_temp_folder().replace('\\', '/') \
                 .replace(':', '|').replace(' ', '%20')
         else:
@@ -297,7 +299,7 @@ class ImpressDocument(PresentationDocument):
         Create an OOo style property object which are passed into some Uno methods.
         """
         log.debug('create property OpenOffice')
-        if os.name == 'nt':
+        if is_win():
             property_object = self.controller.manager.Bridge_GetStruct('com.sun.star.beans.PropertyValue')
         else:
             property_object = PropertyValue()
diff --git a/openlp/plugins/presentations/lib/pdfcontroller.py b/openlp/plugins/presentations/lib/pdfcontroller.py
index b98ae131a..0283fefd4 100644
--- a/openlp/plugins/presentations/lib/pdfcontroller.py
+++ b/openlp/plugins/presentations/lib/pdfcontroller.py
@@ -34,7 +34,7 @@ import re
 from subprocess import check_output, CalledProcessError, STDOUT
 
 from openlp.core.utils import AppLocation
-from openlp.core.common import Settings
+from openlp.core.common import Settings, is_win
 from openlp.core.lib import ScreenList
 from .presentationcontroller import PresentationController, PresentationDocument
 
@@ -123,7 +123,7 @@ class PdfController(PresentationController):
         else:
             # Fallback to autodetection
             application_path = AppLocation.get_directory(AppLocation.AppDir)
-            if os.name == 'nt':
+            if is_win():
                 # for windows we only accept mudraw.exe in the base folder
                 application_path = AppLocation.get_directory(AppLocation.AppDir)
                 if os.path.isfile(os.path.join(application_path, 'mudraw.exe')):
diff --git a/openlp/plugins/presentations/lib/powerpointcontroller.py b/openlp/plugins/presentations/lib/powerpointcontroller.py
index 0f9c2ff35..f42e4f814 100644
--- a/openlp/plugins/presentations/lib/powerpointcontroller.py
+++ b/openlp/plugins/presentations/lib/powerpointcontroller.py
@@ -33,7 +33,9 @@ This modul is for controlling powerpiont. PPT API documentation:
 import os
 import logging
 
-if os.name == 'nt':
+from openlp.core.common import is_win
+
+if is_win():
     from win32com.client import Dispatch
     import winreg
     import win32ui
@@ -69,7 +71,7 @@ class PowerpointController(PresentationController):
         PowerPoint is able to run on this machine.
         """
         log.debug('check_available')
-        if os.name == 'nt':
+        if is_win():
             try:
                 winreg.OpenKey(winreg.HKEY_CLASSES_ROOT, 'PowerPoint.Application').Close()
                 return True
@@ -77,7 +79,7 @@ class PowerpointController(PresentationController):
                 pass
         return False
 
-    if os.name == 'nt':
+    if is_win():
         def start_process(self):
             """
             Loads PowerPoint process.
@@ -271,7 +273,7 @@ class PowerpointDocument(PresentationDocument):
             trace_error_handler(log)
             self.show_error_msg()
 
-    if os.name == 'nt':
+    if is_win():
         def start_presentation(self):
             """
             Starts a presentation from the beginning.
diff --git a/openlp/plugins/presentations/lib/pptviewcontroller.py b/openlp/plugins/presentations/lib/pptviewcontroller.py
index a9090dd1e..7e03e322f 100644
--- a/openlp/plugins/presentations/lib/pptviewcontroller.py
+++ b/openlp/plugins/presentations/lib/pptviewcontroller.py
@@ -30,7 +30,9 @@
 import logging
 import os
 
-if os.name == 'nt':
+from openlp.core.common import is_win
+
+if is_win():
     from ctypes import cdll
     from ctypes.wintypes import RECT
 
@@ -63,11 +65,11 @@ class PptviewController(PresentationController):
         PPT Viewer is able to run on this machine.
         """
         log.debug('check_available')
-        if os.name != 'nt':
+        if not is_win():
             return False
         return self.check_installed()
 
-    if os.name == 'nt':
+    if is_win():
         def check_installed(self):
             """
             Check the viewer is installed.
diff --git a/openlp/plugins/songs/forms/songselectform.py b/openlp/plugins/songs/forms/songselectform.py
index f9f658c5b..aecdf9682 100755
--- a/openlp/plugins/songs/forms/songselectform.py
+++ b/openlp/plugins/songs/forms/songselectform.py
@@ -37,7 +37,7 @@ from time import sleep
 from PyQt4 import QtCore, QtGui
 
 from openlp.core import Settings
-from openlp.core.common import Registry
+from openlp.core.common import Registry, is_win
 from openlp.core.lib import translate
 from openlp.plugins.songs.forms.songselectdialog import Ui_SongSelectDialog
 from openlp.plugins.songs.lib.songselect import SongSelectImport
@@ -377,7 +377,7 @@ class SongSelectForm(QtGui.QDialog, Ui_SongSelectDialog):
         Adds the openlp to the class dynamically.
         Windows needs to access the application in a dynamic manner.
         """
-        if os.name == 'nt':
+        if is_win():
             return Registry().get('application')
         else:
             if not hasattr(self, '_application'):
diff --git a/openlp/plugins/songs/lib/importer.py b/openlp/plugins/songs/lib/importer.py
index e9ee2c2f3..12c8887f7 100644
--- a/openlp/plugins/songs/lib/importer.py
+++ b/openlp/plugins/songs/lib/importer.py
@@ -32,7 +32,7 @@ The :mod:`importer` modules provides the general song import functionality.
 import os
 import logging
 
-from openlp.core.common import translate, UiStrings
+from openlp.core.common import translate, UiStrings, is_win
 from openlp.core.ui.wizard import WizardStrings
 from .importers.opensong import OpenSongImport
 from .importers.easyslides import EasySlidesImport
@@ -70,14 +70,14 @@ except ImportError:
     log.exception('Error importing %s', 'OooImport')
     HAS_OOO = False
 HAS_MEDIASHOUT = False
-if os.name == 'nt':
+if is_win():
     try:
         from .importers.mediashout import MediaShoutImport
         HAS_MEDIASHOUT = True
     except ImportError:
         log.exception('Error importing %s', 'MediaShoutImport')
 HAS_WORSHIPCENTERPRO = False
-if os.name == 'nt':
+if is_win():
     try:
         from .importers.worshipcenterpro import WorshipCenterProImport
         HAS_WORSHIPCENTERPRO = True
diff --git a/openlp/plugins/songs/lib/importers/openoffice.py b/openlp/plugins/songs/lib/importers/openoffice.py
index 0e499f7ae..a0bb1df88 100644
--- a/openlp/plugins/songs/lib/importers/openoffice.py
+++ b/openlp/plugins/songs/lib/importers/openoffice.py
@@ -32,13 +32,14 @@ import time
 
 from PyQt4 import QtCore
 
+from openlp.core.common import is_win
 from openlp.core.utils import get_uno_command, get_uno_instance
 from openlp.core.lib import translate
 from .songimport import SongImport
 
 log = logging.getLogger(__name__)
 
-if os.name == 'nt':
+if is_win():
     from win32com.client import Dispatch
     NoConnectException = Exception
 else:
@@ -106,7 +107,7 @@ class OpenOfficeImport(SongImport):
         Start OpenOffice.org process
         TODO: The presentation/Impress plugin may already have it running
         """
-        if os.name == 'nt':
+        if is_win():
             self.start_ooo_process()
             self.desktop = self.ooo_manager.createInstance('com.sun.star.frame.Desktop')
         else:
@@ -133,7 +134,7 @@ class OpenOfficeImport(SongImport):
         Start the OO Process
         """
         try:
-            if os.name == 'nt':
+            if is_win():
                 self.ooo_manager = Dispatch('com.sun.star.ServiceManager')
                 self.ooo_manager._FlagAsMethod('Bridge_GetStruct')
                 self.ooo_manager._FlagAsMethod('Bridge_GetValueObject')
@@ -150,7 +151,7 @@ class OpenOfficeImport(SongImport):
         Open the passed file in OpenOffice.org Impress
         """
         self.file_path = file_path
-        if os.name == 'nt':
+        if is_win():
             url = file_path.replace('\\', '/')
             url = url.replace(':', '|').replace(' ', '%20')
             url = 'file:///' + url
diff --git a/openlp/plugins/songs/lib/importers/songsoffellowship.py b/openlp/plugins/songs/lib/importers/songsoffellowship.py
index c1ef8666f..2cc49caef 100644
--- a/openlp/plugins/songs/lib/importers/songsoffellowship.py
+++ b/openlp/plugins/songs/lib/importers/songsoffellowship.py
@@ -37,12 +37,13 @@ import logging
 import os
 import re
 
+from openlp.core.common import is_win
 from .openoffice import OpenOfficeImport
 
 
 log = logging.getLogger(__name__)
 
-if os.name == 'nt':
+if is_win():
     from .openoffice import PAGE_BEFORE, PAGE_AFTER, PAGE_BOTH
     RuntimeException = Exception
 else:
diff --git a/tests/functional/openlp_core_common/test_common.py b/tests/functional/openlp_core_common/test_common.py
index f52256c5c..0474bd404 100644
--- a/tests/functional/openlp_core_common/test_common.py
+++ b/tests/functional/openlp_core_common/test_common.py
@@ -32,7 +32,8 @@ Functional tests to test the AppLocation class and related methods.
 
 from unittest import TestCase
 
-from openlp.core.common import check_directory_exists, de_hump, trace_error_handler, translate
+from openlp.core.common import check_directory_exists, de_hump, trace_error_handler, translate, is_win, is_macosx, \
+    is_linux
 from tests.functional import MagicMock, patch
 
 
@@ -139,3 +140,51 @@ class TestCommonFunctions(TestCase):
         # THEN: the translated string should be returned, and the mocked function should have been called
         mocked_translate.assert_called_with(context, text, comment, encoding, n)
         self.assertEqual('Translated string', result, 'The translated string should have been returned')
+
+    def is_win_test(self):
+        """
+        Test the is_win() function
+        """
+        # GIVEN: Mocked out objects
+        with patch('openlp.core.common.os') as mocked_os, patch('openlp.core.common.sys') as mocked_sys:
+
+            # WHEN: The mocked os.name and sys.platform are set to 'nt' and 'win32' repectivly
+            mocked_os.name = 'nt'
+            mocked_sys.platform = 'win32'
+
+            # THEN: The three platform functions should perform properly
+            self.assertTrue(is_win(), 'is_win() should return True')
+            self.assertFalse(is_macosx(), 'is_macosx() should return False')
+            self.assertFalse(is_linux(), 'is_linux() should return False')
+
+    def is_macosx_test(self):
+        """
+        Test the is_macosx() function
+        """
+        # GIVEN: Mocked out objects
+        with patch('openlp.core.common.os') as mocked_os, patch('openlp.core.common.sys') as mocked_sys:
+
+            # WHEN: The mocked os.name and sys.platform are set to 'posix' and 'darwin' repectivly
+            mocked_os.name = 'posix'
+            mocked_sys.platform = 'darwin'
+
+            # THEN: The three platform functions should perform properly
+            self.assertTrue(is_macosx(), 'is_macosx() should return True')
+            self.assertFalse(is_win(), 'is_win() should return False')
+            self.assertFalse(is_linux(), 'is_linux() should return False')
+
+    def is_linux_test(self):
+        """
+        Test the is_linux() function
+        """
+        # GIVEN: Mocked out objects
+        with patch('openlp.core.common.os') as mocked_os, patch('openlp.core.common.sys') as mocked_sys:
+
+            # WHEN: The mocked os.name and sys.platform are set to 'posix' and 'linux3' repectivly
+            mocked_os.name = 'posix'
+            mocked_sys.platform = 'linux3'
+
+            # THEN: The three platform functions should perform properly
+            self.assertTrue(is_linux(), 'is_linux() should return True')
+            self.assertFalse(is_win(), 'is_win() should return False')
+            self.assertFalse(is_macosx(), 'is_macosx() should return False')