It depends on what version of Windows you're running.
If you're running Windows XP/NT/2000, choose Start->Settings->Control Panel. Under System, choose either "Enviroment" on NT, or Advanced->Enviroment Variables. There should be "PATH" listed, and then all you have to do is add the Python directory to the end of this list. If PATH is not listed, you'll have to add your own.
On Windows 98, all you have to do is choose Start->Run sysedit , click on autoexec.bat, and if PATH is already listed, just add the Python directory to the list. If it's not, just do something like PATH C:\directory\to\python .
Hope this helps.
John A
Vampirical Lurker
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Download python from this site . It is one of the distributors of Python which bundles alll the files and features in a single package, taking care of setting up all the paths for you.
~s.o.s~
Failure as a human
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