diff --git a/build-Python27.bat b/build-Python27.bat
new file mode 100644
index 000000000..8eb2350e7
--- /dev/null
+++ b/build-Python27.bat
@@ -0,0 +1,26 @@
+@echo off
+rem   Python 2.7 x86-64 spaCy Windows build
+rem   Toolchain:
+rem      Python 2.7.10  :)
+rem      Microsoft Visual C++ Compiler Package for Python 2.7:
+rem            http://www.microsoft.com/en-us/download/details.aspx?id=44266
+rem      C99 compliant stdint.h for MSVC: 
+rem            http://msinttypes.googlecode.com/svn/trunk/stdint.h
+
+
+PATH = D:\Python27\;D:\Python27\Scripts;%PATH%
+IF NOT EXIST "%LOCALAPPDATA%\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\include\stdint.h" COPY D:\local\include\stdint.h "%LOCALAPPDATA%\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\include\stdint.h"
+
+
+SET INCLUDE = D:\local\include;%INCLUDE%
+
+pip install --upgrade setuptools
+pip install cython fabric fabtools
+pip install -r requirements.txt
+python setup.py build_ext --inplace
+pause
+python setup.py build
+python setup.py test
+python setup.py install
+rem python tests\conftest.py
+rem python tests\test_matcher.py    
diff --git a/requirements.txt b/requirements.txt
index acbf3a3b1..2b5ff53ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 cython
 cymem == 1.11
 pathlib
-preshed == 0.41
+preshed == 0.42
 thinc == 3.3
 murmurhash == 0.24
 text-unidecode
diff --git a/setup.py b/setup.py
index e6fbc246a..f76c10082 100644
--- a/setup.py
+++ b/setup.py
@@ -121,7 +121,7 @@ def run_setup(exts):
                       "spacy.syntax": ["*.pxd"]},
         ext_modules=exts,
         license="MIT",
-        install_requires=['numpy', 'murmurhash', 'cymem >= 1.11', 'preshed == 0.41',
+        install_requires=['numpy', 'murmurhash', 'cymem >= 1.11', 'preshed == 0.42',
                           'thinc == 3.3', "text_unidecode", 'wget', 'plac', 'six',
                           'ujson'],
         setup_requires=["headers_workaround"],
@@ -138,8 +138,11 @@ VERSION = '0.93'
 def main(modules, is_pypy):
     language = "cpp"
     includes = ['.', path.join(sys.prefix, 'include')]
-    compile_args = ['-O3', '-Wno-strict-prototypes']
+# This is gcc only. Also -03 is everywhere and is not recognized :()
+#    compile_args = ['-O3', '-Wno-strict-prototypes']
+    compile_args = ['-Ox', '-EHsc']
     link_args = []
+# It is not prefix !!!
     if sys.prefix == 'darwin':
         compile_args.append(['-mmacosx-version-min=10.8', '-stdlib=libc++'])
         link_args.append('-lc++')
@@ -156,8 +159,10 @@ MOD_NAMES = ['spacy.parts_of_speech', 'spacy.strings',
              'spacy.morphology', 'spacy.tagger',
              'spacy.syntax.stateclass', 
              'spacy._ml', 'spacy._theano',
-             'spacy.tokenizer', 'spacy.en.attrs',
-             'spacy.en.pos', 'spacy.syntax.parser', 
+             'spacy.tokenizer', 
+#'spacy.en.attrs',
+#'spacy.en.pos', 
+             'spacy.syntax.parser', 
              'spacy.syntax.transition_system',
              'spacy.syntax.arc_eager',
              'spacy.syntax._parse_features',