Windows and python execution

[Mark Carter]

What I would like to do it type something like
 > myscript.py
instead of
 > python myscript.py
on a Windows console. I know its possible because Ruby scripts manage to 
do this - I just don't know the registry settings that need to be 
tweaked to enable it. Any ideas (I'd prefer to know the registry 
settings rather than a graphical way to accomplish the goal)?