diff --git a/rainbowstream/c_image.py b/rainbowstream/c_image.py
index b26142d8..a25ef1da 100644
--- a/rainbowstream/c_image.py
+++ b/rainbowstream/c_image.py
@@ -3,26 +3,34 @@
 from os.path import join, dirname, getmtime, exists, expanduser
 from .config import *
 from .py3patch import *
+from .util import get_terminal_size
 
 import ctypes
 import sys
 import os
-
-
-def call_c():
-    """
-    Call the C program for converting RGB to Ansi colors
-    """
-    library = expanduser('~/.image.so')
-    sauce = join(dirname(__file__), 'image.c')
-    if not exists(library) or getmtime(sauce) > getmtime(library):
-        build = "cc -fPIC -shared -o %s %s" % (library, sauce)
-        os.system(build + " >/dev/null 2>&1")
-    image_c = ctypes.cdll.LoadLibrary(library)
-    image_c.init()
-    return image_c.rgb_to_ansi
-
-rgb2short = call_c()
+import platform
+
+from rainbowstream_image import rgb_to_ansi
+
+# def call_c():
+#     """
+#     Call the C program for converting RGB to Ansi colors
+#     """
+#     if platform.system() == 'Windows':
+#         pass
+#         # library = f'{get_python_lib()}\image.cp36-win32.pyd'
+#         # image_c = ctypes.cdll.LoadLibrary(library)
+#     else:
+#         library = expanduser('~/.image.so')
+#         sauce = join(dirname(__file__), 'image.c')
+#         if not exists(library) or getmtime(sauce) > getmtime(library):
+#             build = "cc -fPIC -shared -o %s %s" % (library, sauce)
+#             os.system(build + " >/dev/null 2>&1")
+#         image_c = ctypes.cdll.LoadLibrary(library)
+#     image_c.init()
+#     return image_c.rgb_to_ansi
+
+rgb2short = rgb_to_ansi
 
 
 def pixel_print(pixel):
@@ -60,7 +68,7 @@ def image_to_display(path, start=None, length=None):
     """
     Display an image
     """
-    rows, columns = os.popen('stty size', 'r').read().split()
+    rows, columns = get_terminal_size()
     if not start:
         start = c['IMAGE_SHIFT']
     if not length:
diff --git a/rainbowstream/config.py b/rainbowstream/config.py
index 5f5b81bd..0615ef24 100644
--- a/rainbowstream/config.py
+++ b/rainbowstream/config.py
@@ -103,7 +103,7 @@ def set_config(key, value):
     # Save
     with open(path, 'w') as out:
         json.dump(data, out, indent=4)
-    os.system('chmod 777 ' + path)
+    os.chmod(path, 0o777)
 
 
 def delete_config(key):
@@ -128,7 +128,7 @@ def delete_config(key):
     # Save
     with open(path, 'w') as out:
         json.dump(data, out, indent=4)
-    os.system('chmod 777 ' + path)
+    os.chmod(path, 0o777)
 
 
 def reload_config():
diff --git a/rainbowstream/draw.py b/rainbowstream/draw.py
index 62254e6c..d74d91a3 100644
--- a/rainbowstream/draw.py
+++ b/rainbowstream/draw.py
@@ -17,6 +17,7 @@
 from .config import *
 from .py3patch import *
 from .emoji import *
+from .util import get_terminal_size
 
 # Draw global variables
 dg = {}
@@ -446,7 +447,7 @@ def print_thread(partner, me_nick, me_name):
     me_name = cycle_color(me_name)
     left = ' ' * margin + partner_name + ' ' + partner_nick
     right = me_name + ' ' + me_screen_name + ' ' * margin
-    h, w = os.popen('stty size', 'r').read().split()
+    h, w = get_terminal_size()
     w = int(w)
     line = '{}{}{}'.format(
         left, ' ' * (w - left_size - right_size - 2 * margin), right)
@@ -465,7 +466,7 @@ def print_right_message(m):
     """
     Print a message on the right of screen
     """
-    h, w = os.popen('stty size', 'r').read().split()
+    h, w = get_terminal_size()
     w = int(w)
     frame_width = w // 3 - dg['frame_margin']
     frame_width = max(c['THREAD_MIN_WIDTH'], frame_width)
@@ -530,7 +531,7 @@ def print_left_message(m):
     """
     Print a message on the left of screen
     """
-    h, w = os.popen('stty size', 'r').read().split()
+    h, w = get_terminal_size()
     w = int(w)
     frame_width = w // 3 - dg['frame_margin']
     frame_width = max(c['THREAD_MIN_WIDTH'], frame_width)
diff --git a/rainbowstream/image.c b/rainbowstream/image.c
index e7d7413f..6f405108 100644
--- a/rainbowstream/image.c
+++ b/rainbowstream/image.c
@@ -3,6 +3,9 @@
  * https://github.com/jart/fabulous/blob/master/fabulous/_xterm256.c
  * I make a slightly change to fit my module here
  */
+ 
+#include <Python.h>
+ 
 typedef struct {
         int r;
         int g;
@@ -18,6 +21,7 @@ rgb_t BASIC16[] =
         { 255, 255, 255 } };
 rgb_t COLOR_TABLE[256];
 
+/* __declspec(dllexport) */
 
 rgb_t ansi_to_rgb(int xcolor)
 {
@@ -35,6 +39,32 @@ rgb_t ansi_to_rgb(int xcolor)
   return res;
 }
 
+// int rgb_to_ansi(int r, int g, int b)
+PyObject *
+rgb_to_ansi(PyObject *self, PyObject *args)
+{
+    int r, g, b;
+    
+    if (!PyArg_ParseTuple(args, "iii", &r, &g, &b)) {
+        return NULL;
+    }
+    
+    int best_match = 0;
+    int smallest_distance = 1000000000;
+    int c, d;
+    for (c = 16; c < 256; c++) {
+        d = (COLOR_TABLE[c].r - r)*(COLOR_TABLE[c].r - r) +
+        (COLOR_TABLE[c].g - g)*(COLOR_TABLE[c].g - g) +
+        (COLOR_TABLE[c].b - b)*(COLOR_TABLE[c].b - b);
+        if (d < smallest_distance) {
+            smallest_distance = d;
+            best_match = c;
+        }
+    }
+    
+    return Py_BuildValue("i", best_match);
+}
+
 int init()
 {
   int c;
@@ -44,19 +74,31 @@ int init()
   return 0;
 }
 
-int rgb_to_ansi(int r, int g, int b)
-{
-  int best_match = 0;
-  int smallest_distance = 1000000000;
-  int c, d;
-  for (c = 16; c < 256; c++) {
-    d = (COLOR_TABLE[c].r - r)*(COLOR_TABLE[c].r - r) +
-        (COLOR_TABLE[c].g - g)*(COLOR_TABLE[c].g - g) +
-        (COLOR_TABLE[c].b - b)*(COLOR_TABLE[c].b - b);
-    if (d < smallest_distance) {
-      smallest_distance = d;
-      best_match = c;
+static PyMethodDef ImageMethods[] = {
+    {"rgb_to_ansi",  (PyCFunction) rgb_to_ansi, METH_VARARGS, "Convert RGB to ANSI"},
+    {NULL, NULL, 0, NULL}        /* Sentinel */
+};
+
+static struct PyModuleDef ImageModule = {
+    PyModuleDef_HEAD_INIT,
+    "rainbowstream_image",   /* name of module */
+    NULL,  /* module documentation, may be NULL */
+    -1,       /* size of per-interpreter state of the module,
+                 or -1 if the module keeps state in global variables. */
+    ImageMethods
+};
+
+PyMODINIT_FUNC
+PyInit_rainbowstream_image(void)
+{     
+    PyObject *m;
+    
+    m = PyModule_Create(&ImageModule);
+    if (m == NULL) {
+        return NULL;
     }
-  }
-  return best_match;
+    
+    init();
+    
+    return m;
 }
diff --git a/rainbowstream/interactive.py b/rainbowstream/interactive.py
index 76755e8c..44656a0c 100644
--- a/rainbowstream/interactive.py
+++ b/rainbowstream/interactive.py
@@ -90,7 +90,7 @@ def init_interactive_shell(d):
     """
     readline.set_completer(RainbowCompleter(d).complete)
     readline.parse_and_bind('set skip-completed-text on')
-    if 'libedit' in readline.__doc__:
+    if readline.__doc__ and 'libedit' in readline.__doc__:
         readline.parse_and_bind("bind ^I rl_complete")
     else:
         readline.parse_and_bind("tab: complete")
diff --git a/rainbowstream/pure_image.py b/rainbowstream/pure_image.py
index 8f027bd6..02619758 100644
--- a/rainbowstream/pure_image.py
+++ b/rainbowstream/pure_image.py
@@ -2,6 +2,7 @@
 from functools import partial
 from .config import *
 from .py3patch import *
+from .util import get_terminal_size
 
 import sys
 import os
@@ -339,7 +340,7 @@ def image_to_display(path, start=None, length=None):
     """
     Display an image
     """
-    rows, columns = os.popen('stty size', 'r').read().split()
+    rows, columns = get_terminal_size()
     if not start:
         start = IMAGE_SHIFT
     if not length:
diff --git a/rainbowstream/rainbow.py b/rainbowstream/rainbow.py
index aded31d4..22329a73 100644
--- a/rainbowstream/rainbow.py
+++ b/rainbowstream/rainbow.py
@@ -1761,7 +1761,7 @@ def help():
     Help
     """
     s = ' ' * 2
-    h, w = os.popen('stty size', 'r').read().split()
+    h, w = get_terminal_size()
     # Start
     usage = '\n'
     usage += s + 'Hi boss! I\'m ready to serve you right now!\n'
diff --git a/rainbowstream/util.py b/rainbowstream/util.py
index a1a2a446..3eba0b98 100644
--- a/rainbowstream/util.py
+++ b/rainbowstream/util.py
@@ -1,4 +1,7 @@
 import json
+import shutil
+import platform
+import os
 
 from twitter.util import printNicely
 from .colors import *
@@ -49,6 +52,13 @@ def format_prefix(listname='', keyword=''):
     return formattedPrefix
 
 
+def get_terminal_size():
+    if platform.system() == 'Windows':
+        return shutil.get_terminal_size()
+    else:
+        return os.popen('stty size', 'r').read().split()
+
+
 def add_tweetmode_parameter(kwargs):
     """
     Add support for extended mode to Twitter API calls unless explicitly stated in config
diff --git a/setup.py b/setup.py
index 872dce18..b487b295 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,14 @@
-from setuptools import setup, find_packages
+# from setuptools import setup, find_packages
+from distutils.core import setup, Extension
+from setuptools import find_packages
 import os
 import os.path
 import sys
+import platform
+from shutil import copy, chown
+import getpass
+
+image_ext = Extension('rainbowstream_image', sources=['rainbowstream/image.c'])
 
 if sys.version[0] == "2":
     from pipes import quote
@@ -20,22 +27,20 @@
     "twitter",
     "Pillow",
     "PySocks",
-    "pocket"
+    "pocket",
+    "pyreadline"
 ]
 
 # Default user (considers non virtualenv method)
-user = os.environ.get('SUDO_USER', os.environ.get('USER', None))
+user = os.environ.get('SUDO_USER', os.environ.get('USER', getpass.getuser()))
 
 # Copy default config if not exists
 default = os.path.expanduser("~") + os.sep + '.rainbow_config.json'
 if not os.path.isfile(default):
-    cmd = 'cp rainbowstream/colorset/config ' + default
-    os.system(cmd)
-    if user:
-        cmd = 'chown ' + quote(user) + ' ' + default
-        os.system(cmd)
-    cmd = 'chmod 777 ' + default
-    os.system(cmd)
+    copy('rainbowstream/colorset/config', default)
+    if platform.system() != 'Windows' and user:
+        chown(default, quote(user))
+    os.chmod(default, 0o777)
 
 # Setup
 setup(name='rainbowstream',
@@ -66,6 +71,7 @@
       include_package_data=True,
       zip_safe=True,
       install_requires=install_requires,
+      ext_modules=[image_ext],
       entry_points="""
       # -*- Entry points: -*-
       [console_scripts]