Installed correctly

[Ray]

I've just installed Python 2.4.3 on windows 2000. On the download page
it says that if python is installed the version number will be
displayed if you enter "python" in a command line window, but that
does not happen - it just says "unrecognized command". Rebooting does
not help.

So is it correctly installed? I installed it under "program
files/python" instead of the default location C:\python, since I don-t
like to have the root of C: cluttered with stuff, are there any
problems with this?