[Zope] Adding ZPyGreSQLDA Database Adaptor in Windows

Hi , I have a problem in adding the PostgreSQL Databse adaptor in windows, I have added the ZPyGreSQLDA folder, in the Zope-2.7 / import folder & tried importing it, it says permission denied. I have directly added the ZPyGreSQLDA folder in Zope-2.7 / lib / python / Products folder,, the Zope crashes !!! someone please guide me thru in establishing a connection to PostgreSQL Database .. Thanks , Niru