Can't use chrome driver for Selenium

I'm having trouble using the Chrome driver for Selenium. I have the chromedriver downloaded and saved to C:\Chrome:

driver = webdriver.Chrome(executable_path="C:/Chrome/")

Using that gives me the following error:

Traceback (most recent call last):  File "C:\Python33\lib\subprocess.py", line 1105, in _execute_child    startupinfo)PermissionError: [WinError 5] Access is deniedDuring handling of the above exception, another exception occurred:Traceback (most recent call last):  File "C:\Python33\lib\site-packages\selenium\webdriver\chrome\service.py", line 63, in start    self.service_args, env=env, stdout=PIPE, stderr=PIPE)  File "C:\Python33\lib\subprocess.py", line 817, in __init__    restore_signals, start_new_session)  File "C:\Python33\lib\subprocess.py", line 1111, in _execute_child    raise WindowsError(*e.args)PermissionError: [WinError 5] Access is deniedDuring handling of the above exception, another exception occurred:Traceback (most recent call last):  File "C:/Users/Wilson/Dropbox/xxx.py", line 71, in <module>    driver = webdriver.Chrome(executable_path="C:/Chrome/")  File "C:\Python33\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 59, in __init__    self.service.start()  File "C:\Python33\lib\site-packages\selenium\webdriver\chrome\service.py", line 68, in start    and read up at http://code.google.com/p/selenium/wiki/ChromeDriver")selenium.common.exceptions.WebDriverException: Message: 'ChromeDriver executable needs to be available in the path.                 Please download from http://chromedriver.storage.googleapis.com/index.html  

Any help would be appreciated.