PYTHONPATH unnecessary with PythonWin?

[r.e.s.]

"Jeff Epler" <jepler at unpythonic.net> wrote ...
> Python searches some directories by default.  The documentation probably
> describes this in more detail.  Using PYTHONPATH, you can
> add to that list.  For instance, it's often useful (particularly on
> Unix) to have a personal directory listed in PYTHONPATH (like
> ~/lib/python) for your own modules.

I've created one folder for that purpose, namely
C:\Python23\Lib\site-packages\MyProjects
and I put all my own modules in various subfolders of that one.
It seems to work, but maybe I'm breaking some protocols?