I am using ArGIS 9.3 and have installed python python-2.7.3.amd64 and pywin32-219.win-amd64-py2.7 with windows 7 64 bit operating systnem. Copied ArcGISscripting.pyd from arcgis folder in C:\Python27\Lib\site-packages foler and set pythonpath to C:\Program Files (x86)\ArcGIS\bin, when importing arcgisscripting folder then getting following error, any help will be appreciated as i am new to python world.
>>> import arcgisscripting
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
ImportError: DLL load failed: %1 is not a valid Win32 application.