Python 2.7 on Windows: Copy&Paste install

[jeff saremi]

I have scoured the net for any hints on this. We have some prod machines where we're not able to run MSI installations.
Is it possible to copy Python2.7 from say c:\Python2.7 from one machine to another?
What other steps do we need beyond the following since these DONT work:
1. Copy all files

2. Add the new Python2.7\bin to PATH

3. Add C:\python2.7\Lib and C:\python2.7\Lib\site-packages to PYTHONPATH


thanks

Jeff