The various projects and software/hardware on this website may need drivers to run. This page contains a list of all of the drivers used in my projects.
FTDI FT232R USB To Serial Converter
The projects use the D2XX Drivers however FTDI provides a "Combined Driver Model" driver. The CDM drivers basically combine the Virtual Serial Port and D2XX drivers into one driver package. The above drivers are the ones that I currently use and have tested. You can find the latest up to date drivers on FTDI's website.