Oracle Driver installation

How can I to install Oracle Driver "ruby-oci8-0.1.16-mswin32.rb" ?
Wich is the correct installation procedure ?

Just run it!

C:>ruby ruby-oci8-0.1.16-mswin32.rb

Confirm by 'Yes' and this script will copy the needed files at the right place.

The binary objets compiled for win32 are included into the .rb.