Possible Duplicate:
How can I programmatically get the path of “Python.exe” used by ArcMap
I am trying to get some information from registry about ArcGIS. I am using ArcGIS Desktop 10.0 and For this the registry looks like:

My questions are:
- What does it mean when the "Python10.0" subkey has a "True" value?
- When "Python10.0" subkey has a "False" value?
- Does the registry key values same for every version of ArcGIS?
[Close]
I have edited How can I programmatically get the path of “Python.exe” used by ArcMap question. Thanks @blah238 and @whuber♦ to get me the wrong. Now, this is a close question. Please help me for previous one.
Closely related
At How can I programmatically get the path of "Python.exe" used by ArcMap I asked how to obtain the path to Python.exe programmatically within ArcMap. Of the several solutions offered, one of them suggested using the registry, prompting the present question.