[Zope] Win32 dist. - using own Python instead

Hi, can anyone clarify this for me please? The z2.py refers to fiddling with pythonpath but why is it necessary to add path lib/python1.5 when the win distribution places python in lib/python? <FROM z2.py> # Have to fiddle the path for win32 binary dist. # to ensure the bundled python libs are used. swhome=r'C:\Program Files\WebGalah' import sys sys.path.insert(0, '%s/lib/python' % swhome) sys.path.insert(1, '%s/lib/python1.5' % swhome) sys.path.insert(2, '%s/lib/python1.5/plat-win' % swhome) sys.path.insert(3, '%s/lib/python1.5/win32' % swhome) sys.path.insert(4, '%s' % swhome) </FROM z2.py> If I wanted to run Zope with own python should I alter these lines in addition to altering the start.bat file?