diff --git a/lib/pystray/_base.py b/lib/pystray/_base.py
index 8b8c754..30a8c06 100644
--- a/lib/pystray/_base.py
+++ b/lib/pystray/_base.py
@@ -66,6 +66,10 @@ class Icon(object):
     #: notification.
     HAS_NOTIFICATION = True
 
+    #: Whether this particular implementation forces displaying a
+    #: large notification icon
+    FORCE_LARGE_NOTIFICATION_ICON = False
+
     def __init__(
             self, name, icon=None, title=None, menu=None):
         self._name = name
diff --git a/lib/pystray/_util/win32.py b/lib/pystray/_util/win32.py
index e2d7eb7..ae31eaa 100644
--- a/lib/pystray/_util/win32.py
+++ b/lib/pystray/_util/win32.py
@@ -74,6 +74,12 @@
 NIF_REALTIME = 0x00000040
 NIF_SHOWTIP = 0x00000080
 
+NIIF_NONE = 0x00000000
+NIIF_ICON_MASK = 0x0000000F
+
+SM_CXICON = 11
+SM_CYICON = 12
+
 NIM_ADD = 0x00000000
 NIM_MODIFY = 0x00000001
 NIM_DELETE = 0x00000002
@@ -271,6 +277,18 @@ def _err(result, func, arguments):
 InsertMenuItem.restype = wintypes.BOOL
 InsertMenuItem.errcheck = _err
 
+FindWindow = windll.user32.FindWindowW
+FindWindow.argtypes = (
+    wintypes.LPCWSTR, wintypes.LPCWSTR)
+
+GetDpiForWindow = windll.user32.GetDpiForWindow
+GetDpiForWindow.argtypes = (
+    wintypes.HWND, )
+
+GetSystemMetricsForDpi = windll.user32.GetSystemMetricsForDpi
+GetSystemMetricsForDpi.argtypes = (
+    wintypes.INT, wintypes.UINT)
+
 LoadImage = windll.user32.LoadImageW
 LoadImage.argtypes = (
     wintypes.HINSTANCE, wintypes.LPCWSTR, wintypes.UINT, wintypes.INT,
diff --git a/lib/pystray/_win32.py b/lib/pystray/_win32.py
index 23d039c..160b167 100644
--- a/lib/pystray/_win32.py
+++ b/lib/pystray/_win32.py
@@ -28,6 +28,9 @@
 class Icon(_base.Icon):
     _HWND_TO_ICON = {}
 
+    #: Force large notification icon size on loading the file
+    FORCE_LARGE_NOTIFICATION_ICON = False
+
     def __init__(self, *args, **kwargs):
         super(Icon, self).__init__(*args, **kwargs)
 
@@ -97,7 +100,8 @@ def _notify(self, message, title=None):
             win32.NIM_MODIFY,
             win32.NIF_INFO,
             szInfo=message,
-            szInfoTitle=title or self.title or '')
+            szInfoTitle=title or self.title or '',
+            dwInfoFlags=win32.NIIF_ICON_MASK if Icon.FORCE_LARGE_NOTIFICATION_ICON else win32.NIIF_NONE)
 
     def _remove_notification(self):
         self._message(
@@ -336,19 +340,26 @@ def _release_icon(self):
             win32.DestroyIcon(self._icon_handle)
             self._icon_handle = None
 
+    def _size_for_current_dpi(self):
+        hwnd = win32.FindWindow("Shell_TrayWnd", "")
+        dpi = win32.GetDpiForWindow(hwnd)
+        w = win32.GetSystemMetricsForDpi(win32.SM_CXICON, dpi)
+        h = win32.GetSystemMetricsForDpi(win32.SM_CYICON, dpi)
+        return w, h
+
     def _assert_icon_handle(self):
         """Asserts that the cached icon handle exists.
         """
         if self._icon_handle:
             return
-
+        w, h = self._size_for_current_dpi()
         with serialized_image(self.icon, 'ICO') as icon_path:
             self._icon_handle = win32.LoadImage(
                 None,
                 icon_path,
                 win32.IMAGE_ICON,
-                0,
-                0,
+                w,
+                h,
                 win32.LR_DEFAULTSIZE | win32.LR_LOADFROMFILE)
 
     def _register_class(self):