Why XP can not run Python after being setting the PATH?

[Daniel Mark]

Dear John:

> Have a look in each of those folders (including the root!!) and see
> what you find there. [If I were forced to bet, I'd put my money on
> cygwin].

You are a genius!!!

My machine was intalled python in cygwin:)

I didn't expect that I could get so much helps from this forum.
My heartfelt thanks go out to John and all friends here:)

-Daniel