Logged In: YES 
user_id=17213

The proper way is to update the "Path" environmental variable in the MSW Registry via a dialog box.  

For Windows 2000 (the only system I have access to at the moment), this dialog is accessed as follows:

(1) Press the "Start" button.
(2) Choose "Settings"
(3) Choose "Control Panel"
(4) Choose "System"
(5) Choose "Advanced"
(6) Choose "Environmental Variables"
(7) Add: "*\Scripts" to the "Path" environmental variable.

... where * in (7) is the root directory (e.g., C:\Python22\Scripts) of your Python installation.

Now, isn't that a thing of beauty? <frown>

I think that in MSW XP, (2) above is not needed as "Control Panel" is directly accessible from "Start".

I'm less certain about MSW 98.  I think support for updating the registry is even less intuitive there so one can 
directly edit an "autoexec.bat" file.

I just love Microsoft.

Anyway ... I will try to figure out how this can be automated; some installers clearly do this.