cachebrowser is not recognized as an internal or external command

I've successfully installed cachebrowser on WIN7 (64 bit) after installed Visual C++ for Python 2.7
but `cachebrowser` cannot be used as a command. 
After installation, I can find a `cachebrowser` file (without extention) under the path `D:\stat-tools\Python27\Scripts`, I tried run the command under this folder, it doesn't work.

I also installed the plug-in for chrome,  it doesn't work as well.
