Some adaptations. Now it runs on Windows! (not works, just run ;))

diff --git a/qwerty.py b/qwerty.py
index 38ddbc5..89685d3 100755
--- a/qwerty.py
+++ b/qwerty.py
@@ -8,8 +8,13 @@ from getopt import getopt
 import time
 from copy import copy

-from Xlib import X,display,Xatom
-import Xlib.protocol.event
+try:
+    from Xlib import X,display,Xatom
+    import Xlib.protocol.event
+    XLIB=True
+except ImportError:
+    XLIB=False
+
 import gtk
 from gtk import gdk
 import cairo
@@ -50,7 +55,10 @@ BUTTON_BORDER_ACTIVE = (0,0,0)
 BUTTON_FILL = (0.9, 0.9, 0.9)
 BUTTON_FILL_RUNNING = (0.7, 0.7, 0.7)

-config_file = os.path.expanduser('~/.config/qwerty.conf')
+if os.name=='posix':
+    config_file = os.path.expanduser('~/.config/qwerty.conf')
+else:
+    config_file = os.path.expanduser('~/qwerty.conf')
 sections = {}
 speckeys = {}

@@ -677,11 +685,12 @@ class GUI(object):
         self.window.show_all()
         self.taskbar.hide()

-        try:
-            self.collect_windows()
-        except:
-            self.clients_list = []
-            print 'Could not get list of open windows!'
+        if XLIB:
+            try:
+                self.collect_windows()
+            except:
+                self.clients_list = []
+                print 'Could not get list of open windows!'

     def calc_sizes(self):
         global LABEL_FONT_SIZE
@@ -769,6 +778,8 @@ class GUI(object):
         self.exit()

     def switch_taskbar(self):
+        if not XLIB:
+            return
         self.taskbar_shown = not self.taskbar_shown
         if self.taskbar_shown:
             self.keyboard.hide()
@@ -937,11 +948,12 @@ class GUI(object):
         if not mods:
             mods = []

-        try:
-            self.collect_windows()
-        except:
-            self.clients_list = []
-            print 'Could not get list of open windows!'
+        if XLIB:
+            try:
+                self.collect_windows()
+            except:
+                self.clients_list = []
+                print 'Could not get list of open windows!'

         id = (int(k)-1)%10
         try: