http://wiki.appcelerator.org/display/guides/Installing+on+Windows+7#InstallingonWindows7-LoginasanAdministrator

C:\Program Files\Python32
C:\Program Files\Git
C:\Program Files\Python32\Scripts
C:\Program Files\Java\jdk1.6.0_24
C:\Program Files\Android\android-sdk

%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0;c:\xampp\php;C:\Program Files\Java\jdk1.6.0_24\bin;C:\Program Files\Git\cmd;C:\Program Files\Python32;C:\Program Files\Python32\Scripts;