diff --git a/jedi/_compatibility.py b/jedi/_compatibility.py
index 92cd2c36..d8494a25 100644
--- a/jedi/_compatibility.py
+++ b/jedi/_compatibility.py
@@ -2,7 +2,6 @@
 To ensure compatibility from Python ``2.7`` - ``3.x``, a module has been
 created. Clearly there is huge need to use conforming syntax.
 """
-import binascii
 import errno
 import sys
 import os
@@ -448,52 +447,33 @@ if sys.version_info[:2] == (3, 3):
 
 
 _PICKLE_PROTOCOL = 2
-is_windows = sys.platform == 'win32'
-
-# The Windows shell on Python 2 consumes all control characters (below 32) and expand on
-# all Python versions \n to \r\n.
-# pickle starting from protocol version 1 uses binary data, which could not be escaped by
-# any normal unicode encoder. Therefore, the only bytes encoder which doesn't produce
-# control characters is binascii.hexlify.
 
 
 def pickle_load(file):
-    if is_windows:
-        try:
-            data = file.readline()
-            data = binascii.unhexlify(data.strip())
-            if is_py3:
-                return pickle.loads(data, encoding='bytes')
-            else:
-                return pickle.loads(data)
-        # Python on Windows don't throw EOF errors for pipes. So reraise them with
-        # the correct type, which is cought upwards.
-        except OSError:
-            raise EOFError()
-    else:
+    try:
         if is_py3:
             return pickle.load(file, encoding='bytes')
-        else:
-            return pickle.load(file)
+        return pickle.load(file)
+    # Python on Windows don't throw EOF errors for pipes. So reraise them with
+    # the correct type, which is caught upwards.
+    except OSError:
+        if sys.platform == 'win32':
+            raise EOFError()
+        raise
 
 
 def pickle_dump(data, file):
-    if is_windows:
-        try:
-            data = pickle.dumps(data, protocol=_PICKLE_PROTOCOL)
-            data = binascii.hexlify(data)
-            file.write(data)
-            file.write(b'\n')
-            # On Python 3.3 flush throws sometimes an error even if the two file writes
-            # should done it already before. This could be also computer / speed depending.
-            file.flush()
-        # Python on Windows don't throw EPIPE errors for pipes. So reraise them with
-        # the correct type and error number.
-        except OSError:
-            raise IOError(errno.EPIPE, "Broken pipe")
-    else:
+    try:
         pickle.dump(data, file, protocol=_PICKLE_PROTOCOL)
+        # On Python 3.3 flush throws sometimes an error even though the writing
+        # operation should be completed.
         file.flush()
+    # Python on Windows don't throw EPIPE errors for pipes. So reraise them with
+    # the correct type and error number.
+    except OSError:
+        if sys.platform == 'win32':
+            raise IOError(errno.EPIPE, "Broken pipe")
+        raise
 
 
 try:
diff --git a/jedi/evaluate/compiled/subprocess/__init__.py b/jedi/evaluate/compiled/subprocess/__init__.py
index 6de4521e..89370476 100644
--- a/jedi/evaluate/compiled/subprocess/__init__.py
+++ b/jedi/evaluate/compiled/subprocess/__init__.py
@@ -278,6 +278,12 @@ class Listener(object):
         if sys.version_info[0] > 2:
             stdout = stdout.buffer
             stdin = stdin.buffer
+        # Python 2 opens streams in text mode on Windows. Set stdout and stdin
+        # to binary mode.
+        elif sys.platform == 'win32':
+            import msvcrt
+            msvcrt.setmode(stdout.fileno(), os.O_BINARY)
+            msvcrt.setmode(stdin.fileno(), os.O_BINARY)
 
         while True:
             try: