PHP CLI for Bake, Can't get it to load.

[binarynpixel]

I can't get the path variable to work on my machne. All I get is this error:
'php' is not recognized as an internal or external command, operable program or batch file.

C:\wamp\bin\php\php5.3.0>php -v
PHP 5.3.0 (cli) (built: Jun 29 2009 21:25:23)
Copyright © 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright © 1998-2009 Zend Technologies

What should I add to my path to make it work?

Thanks.