Double click on the ‘CDM20600’ icon (big round red circle) a DOS box will open and close again – that’s it. This has installed the virtual com port drivers required to use the ELM 327 lead.
A very useful utility is also included ‘ftdi_ports_vista.gadget’ this install a sidebar gadget that lets you see what virtual com port number is in use (changes each time you plug the lead in). Please install this also. PLEASE NOTE THIS MAY NOT WORK ON ALL VERSIONS OF 7. If it doesn’t work don’t worry it’s not essential for operation.
Plug the ELM lead into your USB port and wait a few seconds, windows will detect the device and install drivers. When the installation is complete you will see the com port number in the sidebar gadget.