newbie question on PATH vaiable and running python on win xp

[John Boik]

Hi:
I would like to be able to run python from the command line from any
directory.  Right now I can only run it from the Python22 directory.  I
tried putting the Python22 directory in the windows PATH variable, but still
python only would run if I was in the Python22 directory.  I also tried
putting Python22\python.exe in the PATH variable, but that did not help
either.  Any solutions to this?
Thanks.  John