This driver was found on the OPTROX Technical Support Centre site from England. Download the file. Double click the downloaded self-extracting file. It will ask you what folder to unzip the file to. The default is "c \otcdrv", but you can specify any folder. Once unzipped, locate the unzipped folder and run the "setup.exe" file. Once setup has completed, exit setup, if it did not close automatically, by clicking the button in the lower right hand corner. Enjoy!!