n00b BASEPATH question: From where is the BASEPATH value obtained?

[eluser]Unknown[/eluser]
I inherited a mess of code from a previous developer, and parts of the functionality are passed in and out of a CI instance, so I am learning CI.

Right now it looks like the BASEPATH is wrong. From where is the BASEPATH value obtained? I could not find it in the config files and no reference to the path in httpd.conf (I was thinking maybe it grabbed it from the Apache config or something, but it doesn't appear so).

I checked the user guide and numerous Google searches, as well as searching this forum. But if I missed it somewhere feel free to point me and I'll be on my way.

Thanks so much for your help and your patience with an obviously n00b question.

Thanks,

Yen