python django - no module psycopg2.extension even after installing compiled version psycopg2-2.4.5.win32-py2.7.?exe

I am using python django on windows,and trying to deploy to heroku . When i tried to install psycopg2 using pip,

     pip install psycopg2 
 

i got error :

unable to find vcvarsall.bat

Then i found that i need to install visual studio 2008 (or) i can directly download and install compiled version , so downlaoded from this link :

http://www.lfd.uci.edu/~gohlke/pythonlibs/

Filename i downloaded : psycopg2-2.4.5.win32-py2.7.?exe

Even after installing this i am getting error : no module named psycopg2.extensions

So, what more should i do ?

            D:\mycode\python\mysite>heroku run python manage.py syncdb
             Running python manage.py syncdb attached to terminal... up, run.1
             Traceback (most recent call last):
               File "manage.py", line 10, in <module>
                 execute_from_command_line(sys.argv)
               File "/app/.heroku/venv/lib/python2.7/site-                                packages/django/core/management/__i
             nit__.py", line 443, in execute_from_command_line
                 utility.execute()
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__i
             nit__.py", line 382, in execute
                 self.fetch_command(subcommand).run_from_argv(self.argv)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__i
             nit__.py", line 261, in fetch_command
                 klass = load_command_class(app_name, subcommand)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__i
             nit__.py", line 69, in load_command_class
                 module = import_module('%s.management.commands.%s' % (app_name, name))
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/utils/importlib.py"
             , line 35, in import_module
                 __import__(name)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 8, in <module>
                 from django.core.management.sql import custom_sql_for_model,                 emit_post_sync_
             signal
                               File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/sql
             .py", line 6, in <module>
                 from django.db import models
               File "/app/.heroku/venv/lib/python2.7/site-                packages/django/db/__init__.py", line 40, in <module>
                 backend = load_backend(connection.settings_dict['ENGINE'])
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
                 return getattr(connections[DEFAULT_DB_ALIAS], item)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line92, in __getitem__
 backend = load_backend(db['ENGINE'])
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/utils.py", line24, in load_backend
                 return import_module('.base', backend_name)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/utils/importlib.py"
             , line 35, in import_module
                 __import__(name)
               File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 13, in <module>
                 from django.db.backends.postgresql_psycopg2.creation import DatabaseCreation
 
               File "/app/.heroku/venv/lib/python2.7/site-                                packages/django/db/backends/postgre
             sql_psycopg2/creation.py", line 1, in <module>
                 import psycopg2.extensions
             ImportError: No module named psycopg2.extensions
 
             D:\mycode\python\mysite>                            
 

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While isntalling psycopg2 both by pip and easy_install, installdidnt work as i got this error : unable to find vcvarsall.bat with some msg : no previsouly included directores matching 'doc\src_build'

Thanks

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